Neurological and Angiological Studies on the Medulla of Human Thymus.....1
Heiya Yamada and Tuneo Hosaka

Comparative Anatomical Studies on the Arrangement of Connective Tissue Fibres of the Corium of Vertebrates.....15
Mitio Niizima, Vinchi Mizuhira, Akira Takagi and Susumu Okada

Fundamental Neural Mechanism of the Sence Organ.....21
Yasuji Katsuki, Jung Chen and Hokusho Takeda

Studies on Experimental Infection.....33
Ken Aizawa

Studies on the Deviations of Absorption Spectra Caused by Photoreactivation.....37
Hiromasa Kita, Hiroshi Maeda, Bunichi Hanazaki, Fumihiko Shimizu and Hisashi Fujita

Notes on the Unexpected Occurrence of Peromyscopsylla himalaica (Rothschild, 1915) in Japan with its Re-description (Siphonaptera: Leptopsyllidae).....43
Nobuo Kumada

Description of a New Species of Enderleinellus Collected from the South Formosan Squirrel Naturalized into Japan.....49
Kiyotoshi Kaneko

A Clinical Evaluation of the Middlebrook and Dubos Hemagglutination Test for Pulmonary Tuberculosis.....53
Yoshihisa Nozaki, Tatsuo Hirokawa, Kazuo Yasutomi, Takeshi Muneyuki and Komei Watanabe

Fundamental Studies on Scatter of X-Radiation.....59
Tadashi Adachi, Rikisaburo Kamada, Jô Homma and Toshio Uesugi

On the Discovery of a New Blood Factor “ Tja ” .....67
Soichiro Makino, Masayori Kuniyuki, Masashi Horiuchi and Takahiko Fujiwara

Case Report of Radiation Injury of Teeth and Jaws.....71
Takeo Murai

Abstracts of Original Articles (in Japanese Language) in the Ochanomizu Medical Journal
(Ochanomizu Igaku Zasshi) Vol. Ⅰ. 1953.....73

Restauration Moyenne de la Radiodermatite Exsudative par les Rayons-X.....89
Masatoshi Sakka

A New Trombiculid Mite of the Genus Trombicula, Subgenus Miyatrombicula from Tokyo, Japan
(Acarina: Trombiculidae).....93
Nobuo Kumada

Histological Studies on the Medullary Pyramid of Dog.....99
Heiya Yamada and Susumu Maie

Analysis of Seasonal Ascarids Incidence－An Hypothesis.....105
Takeshi Oshima

The Mechanism of Sound Production in certain Cicadas with Special Reference to the Myogenic Rhythm in Insect Muscles.....113
Susumu Hagiwara, Heiichi Uchiyama and Akira Watanabe

An Application of Ion-Exchange mixed Resins to the Desalting of Plasma Protein Fractions Obtained by the Salting Out Method.....125
Sho Miyamoto and Yasuo Matsumura

The Action Length and its Functional Significance in Impulse Transmission.....133
Kazumi Yamagiwa