On the Occurrence of Trombicula (Neotrombicula) pomeranzevi from Nikko, Central Honshu, Japan with a Critical Notes on its Taxonomical Situation.....421
Nobuo Kumada, Kiyotoshi Kaneko, Tadashi Kugoh, Kazuo Hagi and Kazuyuki Utsumi

Fundamental studies on the Analysis of the Blood-Corpuscle Retention phenomena induced by the Stress. [Ⅰ] Fluctuation of Eosinophile Leucocyte Count in the Albino Rats given the repeated Adrenalin Injection at a Four Hours Interval.....439
Sho Miyamoto, Takashi Ozaki, Shigeo Yamaguchi, Kazue Adachi and Yoshie Kanbe
Tadashi Adachi, Toshiro Uesugi, Atsushi Kunii and Hiroshi Ashizawa

Fundamental studies on the Analysis of the Blood-Corpuscle Retention phenomena induced by the Stress. [Ⅱ] On the Observation of Eosinophile Leucocyte Fluctuation in the Time Course after the repeated Adrenalin Injections at Intervals as modified Thorn's Test.....447
Sho Miyamoto, Takashi Ozaki, Shigeo Yamaguchi, Kazue Adachi and Yoshie Kanbe
Tadashi Adachi, Toshiro Uesugi, Atsushi Kunii and Hiroshi Ashizawa

Fundamental Studies on the Analysis of the Blood-Corpuscle Retention phenomena induced by the Stress. [Ⅲ] An Investigation on the (Time) Length of Continuing Eosinopenia after the Adrenalin Injection.....453
Sho Miyamoto, Takashi Ozaki, Shigeo Yamaguchi, Kazue Adachi and Yoshie Kanbe
Tadashi Adachi, Toshiro Uesugi, Atsushi Kunii and Hiroshi Ashizawa

Studies on the Japanese Tooth Shade. [Ⅰ] About Colour Analysis of detachable Tooth Shade guide by Spectrophotometer (Fundamental Experiment).....463
Sho Miyamoto, Hitoshi Miyakoshi, Yosao Kosugi, Rokuro Kageyama, Shigekatsu Kawabe and Kazue Okutsu

Studies on the Japanese Tooth Shade. [Ⅱ] About the Observation of Japanese Tooth Chromaticity on Ages.....473
Sho Miyamoto, Hitoshi Miyakoshi, Yosao Kosugi, Rokuro Kageyama, Shigekatsu Kawabe and Kazue Okutsu

Studies on the Blood Specific Gravity in the “ So-Called ” Adrenalin Shock. [Ⅰ] Geographic and Seasonal Variation of the Blood Specific Gravity of Normal Mature Rabbits.....483
Sho Miyamoto, Hiroshi Aoki and Yoshikatsu Sakagishi

Studies on the Blood Specific Gravity in the “ So-Called ” Adrenalin Shock. [Ⅱ] On the change of Blood Specific Gravities of Adult Healthy Rabbits by Successive Blood-Lettings.....491
Sho Miyamoto, Hiroshi Aoki and Yoshikatsu Sakagishi

Studies on the Blood Specific Gravity in the “ So-Called ” Adrenalin Shock. [Ⅲ] On the Paradoxical Phenomenon of Specific Gravities of the Rabbit Blood taken Successively (Fundamental Experiments).....505
Sho Miyamoto, Hiroshi Aoki and Yoshikatsu Sakagishi

Spontaneous Discharge Pattern of Central Neurons in Eel Brain.....517
Heiichi Uchiyama

Studies on Rubber Base Impression Materials. (Part Ⅵ)　On the Plasticizers or the Liquids to make B-Agents into Pastes.....527
Setsuo Higashi

Studies on Rubber Base Impression Materials. (Part Ⅶ) Effects of the Skill in Mixing Operation.....535
Setsuo Higashi

Studies on Rubber Base Impression Materials. (Part Ⅷ)　Method of Accellerating the Cure Rate of Polysulfide Impression Materials.....541
Setsuo Higashi

Studies on Rubber Base Impression Materials. (Part Ⅸ)　Methods of Retarding the Cure Rate of the Polysulfide Impression Materials.....549
Setsuo Higashi

Effects of Proteases and Hyaluronidase on the Liberation from Hard Tissue Powder.....559
Shigeko Nakanishi, Kakuro Sekino, Keiichi Nagura and Shimpei Araya

Chromatographic Studies on Amino Acids and related Substances liberated from Hard Tissue Powder.....563
Shigeko Nakanishi, Keiichi Nagura, Kakuro Sekino and Shimpei Araya

Heating Rate of Investment.....573
V. M. Kher, Hiroyasu Hosoda and Takao Fusayama