抄録
For determining the bacilli which produce thiaminase I, isolated by the author from Pakistani and Formosan, immunological studies were made about them, comparing with the other relating bacilli ; Bacillus thiaminolyticus, B. aneurinolyticus, B. alvei, B. circulans, B. pumilus, B. brevis. According to the results of agglutination, precipitation and Castellani's test, it was clarified that above new bacterium differed perfectly from former thiamine decomposing and resembling bacilli. From the finding of bacteriological properties, fermentative activities of thiaminase and sensibility to antibiotics, as already reported, these bacilli have been proved to belong to a new thiamine decomposing bacillus.
