Abstract
We made 76 liquid culture media out of cow submaxillary Mucin made in our laboratory. Using them we tried to cultivate murine leprosy Kumamoto strain for 71. times, Fukuoka strain for 49 times and human leprosy 11 strain for 93 times. In all cases we recognized no increase of both Mycobacterium leprae and Mycobacterium leprae murium. But we got an encouraging suggestion by Bacillus tuberculosis cultivation by No. 65 culture medium which showed a remarkable growth of the bacilli. So we are making the following experimentation.