By B. B. BRAHMACHARI, d.p.h. Director of Public Health Laboratory, Bengal As I have shown in my article on the vitamin value of the food fats of Bengal (Brahmachari, 1932), mustard oil, i.e., the oil expressed from the seeds of the mustard plants, and ghee are the only two fats which enter, as such, into the dietary of the people of Bengal, and, of the two, mustard oil is the more important. It...