Oral Bacteria Capable of Passing Through Dental Substance.....319
Masao Onishi and Yoshimi Tachibana

Expansion of Investment in Casting Rings.....327
Takao Fusayama, Sadao Sakura and Ei Suzuki

Appendiceal Carcinoid associated with Acute Appendicitis
Report of a Case, with a Review of Literatures in Japan.....343
Yutaka Inaba, Toh Miyakawa and Takashi Yamada

Experimental Studies on the cytological Diagnosis of gastric Cancer
Preliminary Report: Changes of exfoliated non-malignant Cells in the Gastric Juice.....349
Takashi Yamada and Nobuhisa Asano

Studies on halophilic bacteria
Part Ⅱ. The effects of distilled water on halophilic bacteria.....359
Tadaya Takeuchi, Shuji Hirose, Kyomaro Tanaka, Masaki Yamawaki, Saburo Dei and Shunjiro Sekiguchi

Innervation of the Pineal Body and the Supracommissural and Subcommissural Organs of the Japanese Monky.....365
Tuneo Hosaka, Akinori Nakai and Shoji Kushima

Ultraviolet Absorption Spectrophotometrical Datermination of Parathion in Water.....379
Hiromasa Kita, Hiroshi Maeda, Bunichi Hanazaki, Masakazu Kawai and Toshihiko Takazawa

Abstract of Literatures from School of Dentistry at Work.....385