Volume 24, Number 1 (1978)

Original Articles

Shu MORIIZUMI, Takeshi OKANO
Viscoelasticity and Structure of Wood. IV. Behavior of crystal lattice strain depended on moisture content and time     1

Masami FUSHITANI
Thermally Stimulated Currents in Wood Electrets     7

Shigeru NISHIO
Estimation of Drying Stresses in Wood by Cup Method. V. Relation between Cup Quantity and Surface Check     12

Shigeru SUGIYAMA
Fundamental Studies on Stress Distribution and Frictional Behavior on Interface between Tool and Chip in Veneer Cutting. IV. Some Considerations on Veneer Cutting Phenomenon by Tool with Restricted Tool-Chip Contact Length     19

Masayuki KOMATSU
Machine Boring Properties of Wood. IV. The effects of wood moisture content on the boring forces and chip formation     26

Toru EBIHARA
Mechanical Properties of Plywood Containing Defects in Core Veneer. I. Effect of Core Gaps on Bending Properties of Plywood     32

Tetuji TUJINO
Studies on the Bending of Wooden Box Beam     39

Yaw-Fuh HUANG, Minoru MORI
Pressing of Particleboard with Radio-frequency. (III). Effects of High Temperature Pressing after Radio-frequency Preheating on Board Properties     46

Fujiichi SAITO, Masaaki FUKAZAWA
Mechanical Properties of Particleboards. (II). The Effect of Alternate Soaking and Oven Drying     51

Hiroshi KANAZAWA, Terutaka NAKAGAMI, Kenzo NOBASHI, Tokuo YOKOTA
Studies on the Gluing of the Wood Articles. XI. The Effects of Teak Wood Extractives on the Curing Reaction and the Hydrolysis Rate of the Urea Resin Adhesive     55

Hideo KURIHARA, Atsushi SAWATARl, Tohjun TAKASHIMA
Change in Dielectric Properties of Cellulose followed by Tritylation-Detritylation     60

Kazuhiko SAMESHIMA, Norio TAKAMURA, Emiko KAMINO
Biologically Active Substances in Pulping Waste Liquors. I. Active Substances on Termites, Coptotermes formosanus SHIRAKI. in the Wastes of Kraft Pulping and Bleaching     65

Note

Yuji IMAMURA
Abnormal Ray Tissues in Excrescence Featured Wood of Sugi (Cryptomeria japonica D. Don)     71

Proceeding of the Society


Volume 24, Number 2 (1978)

Original Articles

Takashi OKUYAMA, Yasutoshi SASAKI
The Residual Stresses in Wood Logs Due to Growth Stresses. (IV). The Growth Stresses Piled in The Trunk     77

Toshiro TOCHIGI, Kazuhiko OGASAWARA, Daikuro HAYASHI
Studies on Wear and Blunting of the Tool in Wood Cutting. I. The changes of perpendicular force and edge recession in the progress of wear and blunting of the tool in the orthogonal rectilinear cutting (0-90)     85

Kohei KOMATSU
Strength of the Joints with glued Splint Plates subjected to edgewise pure Bending     91

Yaw-Fuh HUANG, Minoru MORI
Pressing of Particleboard with Radio-frequency. (IV). Effects of Distance Piece in Combined Heating Method on Board Properties     97

Fumio SATO, Seiichi SATONAKA
Preparation of Carbon Activated with Phosphoric Acid from NSSC Spent Liquor     104

Mitsuro ISHIHARA, Kazumasa SHIMIZU, Tatsuo ISHIHARA
Hemicellulases of Brown Rotting Fungus, Tyromyces palustris. III. Partial purification and mode of action of an extracellular xylanase     108

Kenzo NOBASHI, Tokuo YOKOTA
The Solvent Effects on the Polymerization of Styrene Inhibited by Wood Extractives     116

Shiryo YAGA
On the Termite-resistance of Okinawan Timbers. V. The relation Wood extractives with Protozoa     123

Kunio TSUNODA, Koichi NISHIMOTO
Distribution of the Teredinidae along the coasts of Japan, with a review of all named forms from Japan     127

Notes

Osamu SAWABE
Porosity and Pore. Structure of Wood and Cellulose Dried after Solvent-Replacement. I. Shrinkage of wood accompanying with solvent-replacement and solvent-evaporation     135

Hideo FUNAKOSHI, Kenzo NOBASHI, Tokuo YOKOTA
The Inhibitory Extractives in Sugi Heartwoods for the Vinyl Polymerization     141

Proceeding of the Society


Volume 24, Number 3 (1978)

Original Articles

Yasutoshi SASAKI, Takashi OKUYAMA, Yoji KIKATA
The Evolution Process of the Growth Stress in the Tree. The Surface Stresses on the Tree     149

Minoru FUJITA, Hiroshi SAIKI, Hiroshi HARADA
The Secondary Wall Formation of Compression Wood Tracheids. II. Cell wall thickening and Iignification     158

Osamu SAWABE, Susumu KITAGAWA
Pore Structure in Swollen Native Cellulose. Association with structural feature of native cellulose     164

Makoto OHGOSHI, Kanji NAKATO, Takeshi SADOH
Pore Size Distribution in Flow Path of Liquid through Never-dried Softwoods     171

Takeji ARAI, Hiromichi KAWASUMI
Measurement of Thermal Diffusivity, Specific Heat, and Thermal Conductivity of KATSURA Wood by Methods of Laser Flash and Adiabatic Calorimeter     177

Tomio TAKEMURA
The Distortion of the Flat-Sawn Board with Alternating Spiral Grain by Drying     183

Yoshihiro MATAKI, Hideto IMURAKAMI, Yasuhide MURASE, Jun-ichi KAWABE
Internal Stress Directed Parallel to the Plane of Micro-Particle Surface Particleboard     190

Seiichi YASUDA, Byung-Ho YOON, Noritsugu TERASHIMA
PMR Spectra of Lignin Model Compounds in Alkaline Solution.     196

Tomoaki IJIMA, Miyato HIGAKI, Takeo SHIBAMOTO
Studies on the Artificial Rearing of Lyctus brunneus Stephens. II. Rearing Tests of Some Melidic and Holidic Diets     201

Note

Tomoaki IJIMA, Miyato HIGAKI, Takeo SHIBAMOTO
Studies on the Artificial Rearing of Lyctus brunneus Stephens. I. Wood components of timber in relation to food habit of L. brunneus     206

Preliminary Report

Ken-ichi KURODA, Kokki SAKAI, Kyoji MINAMI, Tamio KONDO
On Aminobenzenesulfonate Lignin (VII). Chemical structure of reaction product (C-I) of vanillyl alcohol and sodium metanilate     211

Proceeding of the Society


Volume 24, Number 4 (1978)

Original Articles

Noboru DOI, Masami FUSHITANI, Jisuke KABURAGI
Change in Lattice Spacing of Cellulose Crystallite in Wood Caused by Drying Set     217

Atsushi SAWATARIl, Hideo KURIHARA, Tohjun TAKASHIMA
Thermally Stimulated Current of Cellulose Powder     224

Junji OHSAWA, Yutaka YONEDA
Shearing Test of Woods as a Model of Defibration. I. Shearing Strength     230

Kinji TAKI, Hiroshi MIZUMACHI, Yoshiyasu YAMAGISHI
Bond Quality of PVA-isocyanate Reactive Resin Adhesives (I). Relation between the cross-linking density and the adhesive strength     237

Toshimi HIRATA, Hajime OKAMOTO, Kazuo NAITO
Viscosimetric and Gravimetric Study on Pyrolysis of Cellulose Treated with Ammonium Phosphate and Sodium Borate     243

Yoshihiko SHINODA, Ken KANNO, lchiji KAWAMURA
Bleaching of Kraft Pulp with Chlorine. III. Effect of hemicellulose on the formation of coloring materials of low bleachability     250

Masamitsu FUNAOKA, Isao ABE
The Reaction of Lignin under the Presence of Phenol and Boron Trifluoride. I. On the formation of catechol from MWL, dioxane lignin and kraft lignin     256

Toshiya IKEDA, Munezoh TAKAHASHI, Koichi NISHIMOTO
Antitermitic Components of Kaya Wood, Torreya nucifera Sieb. et Zucc.     262

Preliminary Report

Mitsuyoshi YATAGAI, Teruo SHIRATO, Yoshioki HAYASHI, Narakatsu FUKUHARA, Toshio TAKAHASHI
Pisiferic Acid, a New Phenolic Diterpene Carboxylic Acid from Chamaecyparis pisifera S. et Z.     267

Proceeding of the Society


Volume 24, Number 5 (1978)

Original Articles

Shuichi KAWAI, KanjiNAKATO, Takeshi SADOH
Moisture Movement in Wood Below the Fiber Saturation Point     273

Takeji ARAI, Hiromichi KAWASUMI, Naoharu KINOSHITA
Three-Dimensional Graphic Analysis to Determine The Optimum Laser Cutting Conditions of Board     281

Takeshi FURUNO, Teruo GOTO
Structure of the Interface between Wood and Synthetic Polymer. XI. The Role of Polymer in the Cell Wall on the Dimensional Stability of Wood-Polymer Composite (WPC)     287

Takeshi SADOH, Hiroshi TAKEZAWA, Masakazu TSUCHlYA, Kanji NAKATO
Veneer laminates with elastomeric glue-1ayers. I. Bending properties of veneer-laminated beams     294

Fumio MATSUI, Toru KATSURA, Koji MURAKAMI, Rikizo IMAMURA
Fundamental Studies on Papermaking Properties of Hardwood Pulp. I. Separation of hardwood pulp elements     299

Fumio MATSUI, Toru KATSURA, Koji MURAKAMI, Rikizo IMAMURA
Fundamental Studies on Papermaking Properties of Hardwood Pulp. II. Papermaking properties of hardwood pulp elements     304

Terutaka NAKAGAMI, Tokuo YOKOTA
Esterification of wood with unsaturated carboxylic acids. IV. Chemical composition and molecular weight of the acetone soluble fraction of β-methylcrotonylated woods     311

Terutaka NAKAGAMI, Tokuo YOKOTA
Esterification of wood with unsaturated carboxylic acids. V. Effect of delignification treatments on dissolution of wood esterified by the TFAA method     318

Tomoaki IJIMA, Toshikatsu SUZUKI, Miyato HIGAKI, Takeo SHIBAMOTO
Study on the Incipient Rot of Timber and Identification of Type of Rot     324

Note

Atsushi SAWATARI, Haruki OKADA, Norimichi KITA
Strength Properties of Handsheets from Acetylated Pulp with Various Degrees of Substitution Comparison of the strengths of handsheets from acetylated pulps under permutoidal reaction condition with ones under topochemical condition     335

Proceeding of the Society


Volume 24, Number 6 (1978)

Original Articles

Minoru FUJITA, Hiroshi SAIKI, Hiroshi HARADA
The Secondary Wall Formation of Compression Wood Tracheids. III. Cell organelles in relation to cell wall thickening and lignification     355

Hiroki NANKO, Hiroshi SAIKl, Hiroshi HARADA
Cell Wall Structure of the Sclereids in the Secondary Phloem of Populus euramericana     362

Ikuo FURUKAWA
Fracture Modes of the Middle Layer of the Secondary Wall in Individual Latewood Tracheids broken under Tensile Load     369

Kiyoshi ISHIHARA, Nobuo SOBUE, Tomio TAKEMURA
Effect of Grain Angle on Complex Young’s Modulus E* of Spruce and Hoo     375

Tsutomu AOKI, Tadashi YAMADA
Chemorheology of Wood. III. Diffusion Controlled Stress Relaxation in Wood     380

Hiroshi SUMI
High Temperature Drying of Wood. I. Effect of temperature on drying rate in final drying stage     385

Hiroshi SUMI
High Temperature Drying of Wood. II. Effect of heating conditions on some mechanical properties and color of Western hemlock     391

Toru EBIHARA, Saburo KIGUCHI
The Fundamental Studies on Field-Gluing. I. Nail-Gluing of Lumber-to-Plywood Joints     400

Tae OKI, Hisao ISHIKAWA, Katsumi OKUBO
Characteristics of Oxidative Degradation of Lignin by Peroxide and Oxygen-Alkali Methods     406

Masami NOGUCHI, Atsushi SAWATARI, Shozo TANIHATA
Polishing of Wood with Tokusa (Equisetum hiemale L. var. japonicum Milde.). I. Distribution of silicon in Tokusa     415

Note

Mitsuyoshi YATAGAI, Koichi SAKURAI, Toshio TAKAHASHI
Extracts from the Woods of Albizia falcata (L.) Back and Syzygium sp. (Watergum)     419

Preliminary Reports

Masakazu AOYAMA, Akira SAKAKIBARA
Isolation of Two New Dilignols from Hydrolysis Products of Hardwood Lignin     422

Kenichi SUDO, Byung Ho HWANG, Akira SAKAKIBARA
Isolation of α-O-γ Compound from Hydrogenolysis Products of Lignin     424

Proceeding of the Society


Volume 24, Number 7 (1978)

Original Articles

Sadaaki OHTA
The Observation of Tree Ring Structure by Soft X-ray Densitometry (I). The effects of air pollution on annual ring structure     429

Minoru FUJITA, Hiroshi HARADA
Autoradiographic investigations of cell wall development. I. Tritiated glucose assimilation in relation to cellulose and hemicellulose deposition     435

Yasushi KANAGAWA, Yoshiaki HATTORI
Progress of Shrinkage in Wood. I.     441

Junsuke MUKUDAI, Satoru SAKAMOTO, Hiromu KADITA, Shigeki YATA
Evaluating of Linear Viscoelastic Behavior of Wood. I. On Deflection of Plate Shear Test Specimen Being Subjected to Load Changing with Lapse of Time     447

Jiro UMETSU, Naoharu KINOSHITA, Daikuro HAYASHI
Studies on Wood Grinding with Coated Abrasive Belts. V. Mechanisms and Characteristics of Wood Grinding with Contact Wheel     455

Toshimi HIRATA, Kazuo NAITO
Pyrolyses of Cellulose Treated with Ammonium Bromide and Sodium Chloride     464

Makio HASUIKE, Tetsu UESAKA, Koji MURAKAMI, Rikizo IMAMURA
Mass Density Distribution of Pulp Sheets from Earlywood and Latewood Pulps of Karamatsu (Larix. Ieptolepis)     473

Tutomu SUZUKI, Kunio TOSAKA, Jisuke HAYASHI
Studies on SO2 + MgSO4 Cooking. The principle of the bicomponents-cooking with SO2 and MgSO4     479

Tutomu SUZUKI, Kunio TOSAKA, Jisuke HAYASHI
Studies on SO2 and MgSO4 Cooking. The principle of the bicomponents, SO2 – MgSO4 cooking “The relation between the chemical condition of the cooking liquor and the rate of delignification reaction”     489

Takeo TABATA, Tamio KONDO
Protection of Shiitake-fungus from Mycoparasite by the Fungicidal Agents. 5. Characteristics of Various Selective Fungicides against Shiitake-fungus and its Mycoparasites     502

Note

Taizo AIUCHI, Shigeo ISHIDA
An Observation of the Failure Process of Softwood under Compression perpendicular to the Grain in the Scanning Electron Microscope     507

Proceeding of the Society


Volume 24, Number 8 (1978)

Original Articles

Kunio KANNO
Swelling Stress of Wood under Different Restraints. III. Relations between anisotropies of swelling stress and those of several properties of wood     513

Shuichi KAWAI, Kanji NAKATO, Takeshi SADOH
Prediction of Moisture Distribution in Wood During Drying     520

Masayuki KOMATSU
Machine Boring Properties of Wood. V. The effects of the point angle of twist drill on the boring forces     526

Jiro UMETSU, Naoharu KINOSHITA, Daikuro HAYASHI
Studies on Wood Grinding with Coated Abrasive Belts. VI. Effects of Wear Process of Coated Abrasive Belts to Characteristics of Wood Grinding with Contact Wheel     533

lsami TAKAMI
Strength of circular-curved laminated wood     541

Hiroaki YOSHIDA, Takashi TAGUCHI
Impact Bending and Rolling Shear Properties of Weathered Plywood     546

Toru KATSURA, Koji MURAKAMI, Rikizo IMAMURA
Single Fiber Extraction Test Using Long Fiber Sheets     552

Tetsuo AOYAGI, Hiroshi SHIMIZU, Nam-Seok CHO, Shuji HOSOYA, Junzo NAKANO
Effect of Sulfite Pretreatment on Oxygen-Sodium Hydroxide Cooking     558

Gyosuke MESHITSUKA, Junzo NAKANO
Studies on the Mechanism of Lignin Color Reaction (XII). Mäule Color Reaction (8)     563

Terutaka NAKAGAMI, Tokuo YOKOTA
Esterification of wood with unsaturated carboxylic acids. VI. Effect of the alkali pre-treatment on the dissolution of wood esterified by the TFAA method     569

Sanro TACHIBANA, Masashi SUMIMOTO
Studies on Pitch Troubles caused by pulping and bleaching of tropical woods. (3).On major wood extractives and the derived intermediate for the yellow pitch specks     575

Note

Hitoshi IMAGAWA, Kazumi FUKAZAWA
Influence of Wood Extractives on UV Microscopy for Lignin Determination     583

Preliminary Report

Nobuya MINEMURA
Control of the Photo-induced Discoloration of Mechanical Pulp with Polyethylene Glycol     587

Proceeding of the Society


Volume 24, Number 9 (1978)

Original Articles

Shigeki YATA, Junsuke MUKUDAI, Hiromu KAJITA
Morphological Studies on the Movement of Substances into the Cell Wall of Wood. I. Methods for microscopical detection of diffusing substances in the cell wall     591

Ikuo FURUKAWA
Optical Microscopic Studies on the Longitudinal Tensile Failure of Notched Microtome Sections     598

Junsuke MUKUDAI, Satoru SAKAMOTO
Evaluating of Linear Viscoelastic Behavior of Wood. II. On Change of Load on Plate Shear Test Specimen Being Subjected to Deflection Changing with Lapse of Time Fundamental Studies on Stress Distribution and Frictional Behavior on Interface between Tool and Chip in Veneer Cutting. V.     605

Shigeru SUGIYAMA, Yuji TOKUYAMA
Effect of Pressure Bar Compression upon Stress Distribution and Frictionai Behavior on Tool Rake Face     612

Doan-THEM, Yoshihiro MATAKI
A Study on Mechanism of Continuous Lamination of Lumber in Pressing by Roller Belt (VI). Theoretical Analysis of Pressure Distribution and Bending Behavior in Laminated Assembly     619

Hidetoshi KUTSUKI, Takayoshi HIGUCHI
The Formation of Lignin of Erythrina crista-galli     625

Kazumasa SHIMIZU, Kuninori USAMI
Enzymatic Hydrolysis of Wood. III. Pretreatment of woods with acidic methanol-water mixture     632

Jun HOSOKAWA, Takeshi KOBAYASHI, Takamasa KUBO, Yutaka KIMURA
Studies on Colour Reversion of Ozone-bleached KP. II. Functional Groups of Ozone-bleached KP     638

Yoshihiro KATAYAMA, Toshio FUKUZUMI
Bacterial Degradation of Dimers Structurally Related to Lignin. II. Initial Intermediate Products from Dehydrodiconiferyl Alcohol by Pseudomonas putida     643

Shoji OGA, Tamio KONDO
On the antagonisms between L. edodes and Hypocrea sp.     650

Kazuhiko KINJIYOU, Tamio KONDO
Study on the cultivation culture media of basidiomycetes     655

Notes

Shingo SUGIYAMA, Tomotaka YOSHIMOTO
Effect of Preservatives Incorporated in Glue on Decay of Plywood     659

Yoshihiro KATAYAMA, Toshio FUKUZUMI
Enzymatic synthesis of three lignin-related dimers by an improved peroxidase-hydrogen peroxide system     664

Takeo TABATA, Tamio KONDO, Kenji SONOMOTO, Yasuhiko KATO
A Method for the Isolation of Hymenomycetes from Decayed Wood and Soil     668

Preliminary Reports

Keiji MIKI, Takashi SASAYA
A Glucoside from the Inner Bark of Larix leptolepis Gord.     671

Jun OHTANI, Shigeo ISHIDA
Pit Membrane with Torus in Dicotyledonous Woods     673

Proceeding of the Society


Volume 24, Number 10 (1978)

Original Articles

Tadanori FUKUDA
Studies on Tissue Culture of Tree-Cambium VII. Sugar composition of cell wall polysaccharides of suspension cultured poplar cells     677

Chutaro KATO, Hisashi FUKUI
Studies on the Anti-Kick-Back Fingers of Wood Working Machinery. II. Anti-kick-back mechanism of the finger     683

Masayuki KOMATSU
Machine Boring Properties of Wood. VI. The effects of the point angle of twist drill on the accuracy of finishing     692

Shigeru SUGIYAMA, Miyako SUGA
Stress Distribution and Frictional Coefficient on Tool Rake Face in Wood Cutting     698

Michio TOKUDA
Studies on the Nailed Wood Joint. II. Nail withdrawal resistance under various moisture content conditions – especially, on the influence of rust     705

Fujiichi SAITO, Fumiaki HASHIMOTO, Takeshi HAYAKAWA
Mechanical Properties of Particleboards. (III). The Effects of Moisture Content on Mechanical Properties of Particleboards     714

Hiroaki YOSHIDA, Takashi TAGUCHI
Shear Properties of Weathered Plywood     720

Hiromu KANEDA
Studies on the Weatherability of Composite Wood (VI). Durability of Adhesive Joint of Plywood under Loaded Condition (2)     726

Hiromu KANEDA
Studies on the Weatherability of Composite Wood (VII). Durability of Adhesive Joint of Plywood under Loaded Condition (3)     732

Yahia Z. EISSA, Makoto USUDA, Takashi KADOYA
Flow Properties of Pulp Fibre Suspension. Part 1. Flow resistance of rotating dilute fibre suspension     736

Minoru KIMURA, Yusuke KARAMI, Makoto USUDA, Takashi KADOYA
Effect of Restraint During Drying on Mechanical Properties and Dimensional Stability of Handsheet     743

Hideo OHASHI, Hiroyuki IMAMURA
The Extractives of Japanese Cladrastis Species IX. Chemotaxonomical Comparison of Flavonoid Constituents between Cladrastis platycarpa and C. shikokiana     750

Kunio TSUNODA, Koichi NISHIMOTO
Effect of the time of immersion on the rates of shipworm attack on wood     760

Preliminary Report

Kenji IIYAMA, Arbin G. KULKARNI, Yoshika NOMURA, Junzo NAKANO
Studies on Anthraquinone Additives in Alkaline Cooking     766

Proceeding of the Society


Volume 24, Number 11 (1978)

Original Articles

Nobuyuki HIRAI, Nobuo SOBUE, Ikuo ASANO, Fumiyoshi SHlRATORI
Studies on Structure of Wood by Laser     771

Yasuo OHSAKO
Mechanical Properties of Xylem in Newly Formed Branches of Japanese Black Pine (Pinus Thunbergii Parl.)     778

Tsutomu AOKI, Tadashi YAMADA
Chemorheology of Wood IV. Relaxation Time and Rate Constant     784

Junji OHSAWA, Yutaka YONEDA
Shearing Test of Woods as a Model of Defibration. II. Exposed Surface by Shearing Fracture     790

Fukumi MAKI, Misato NORIMOTO, Tadashi YAMADA
Relationship between humidity conditions and the nature of interior wall materials     797

Daikuro HAYASHI, Kazuhiko OGASAWARA, Toshiro TOCHIGI
Studies on Wear and Blunting of the Tool in Wood Cutting. II. Effects of wear of the tool on string cutting values, ratio of U-shaped cells, and deteriorative progress in the edge figure of the knife     802

Jiro UMETSU, Naoharu KINOSHITA, Daikuro HAYASHI
Studies on Wood Grinding with Coated Abrasive Belts. VII. Effects of Abrasive Grains Wear on Color Difference and Glossiness of Wood Surface in Belt Grinding with Contact Wheel     808

Hideyuki YOKOCHI, Hisashi FUKUI
Face Milling of Wood. I. Geometry in formation of face milled surface and calculation of depth of knife mark on ideally machined surface     815

Michio TOKUDA
Studies on the Nailed Wood Joint, III. Nail withdrawal resistance of full scale nailed joints under cyclic changing moisture content conditions     822

Osamu SAWABE
Porosity and Pore Structure of Wood and Cellulose Dried after Solvent-Replacement. II. Pore size distribution curves of cellulose which has been solvent replaced and dried by the use of different manners and various nonpolar solvents     828

Sadatoshi MEGURO, Tamio KONDO
Factors affecting oxygen-alkali pulping (1). Reproducibility of pulping results     833

Hirao SHIMAZONO, Kazuhiko KINJO, Hiraku NISHIMURA, Shinsaku KAWACHI
Transformations of Aromatic Acids by Wood Destroying Fungi. I. Transformations of Anisic Acid by Various Wood Destroying Fungi     837


Volume 24, Number 12 (1978)

Original Articles

Shinji FUJIWARA, Yoshio NAKAYAMA
Distribution of rays and total number of ray cells in stem of Sugi(Cryptomeria japonica D. DON)     841

Masaharu SUZUKI
Cellular structure and bending property of juvenile wood of seedling and cutting origin     846

Yasuo OHSAKO
A Study on the Material Properties and the Formation of Wood. VII. Viscoelastic Properties of Newly Formed Xylem of Japanese Black Pine (Pinus ThunbergiiParl.)     852

Hidetoshi MIYAKAWA, Minoru MORI
Impact Properties of Wood and Wood Based Materials. IV. Effect of Impact Velocity on Shear Fracture of Wood Specimens     857

Yasuhide MURASE
Effects of Surface Roughness of Steel and Wood Variables on Repeated Friction between Wood and Steel     865

Takeshi SADOH, Shigeji IWAKI, Shingo NISHIGUCHI, Kanji NAKATO
Veneer laminates with elastomeric glue-layers. II. Effect of glue-lines on bending properties     873

Tsann-Huie LIN, Motoaki OKUMA
The durability of structural particleboard. 2. Some flexural properties in the repetitive loading test.     879

Hirokuni ONO, Bunichiro TOMITA
The effect of molecular species of methylated melamine resins on film performance of water-based amino-alkyd resin coatings     884

Masamitsu FUNAOKA, Isao ABE
The Reaction of Lignin under the Presence of Phenol and Boron Trifluoride. II. The effect of methoxyl group and ethylenic double bond on the formation of catechol     892

Yoshioki HAYASHI, Teruo SHlRATO, Koichi SAKURAI, Toshio TAKAHASHI
Isoflavanoids from the Heartwood of Millettia pendula BENTH     898

Note

Akiyoshi MISHIRO
The effect of specimen dimensions on swelling of wood     902