134 THE AMERICAN MONTHLY [April 



lished. At Monte Video it is believed that Dr. Saiiarelli 

 has succeeded, and it is believed that he will win the re- 

 ward of about ^30,000 offered by the Brazillian Govern- 

 ment. It may be remembered that the enthusiastic Ital- 

 ian biolog-ist cured himself of yellow fever caug-ht in the 

 course of his investigfations. — Scientific American. 



Diagnosis of Pregnancy withthe Microscope. — Dr. Park, 

 of Philadelphia, (Amer. Gyn. and Obstet. Jour.) reports 

 that after a microscopic study of the triple phosphates in 

 the urine of preg-nant women, he is satisfied that they be- 

 g-an to chang-e their form within twenty days after concep- 

 tion. The feathery appearance first disappears from the 

 tips of the crystals and progfresses downward to the base. 



Sometimes it occurs only on one side, but g-enerally on 

 both. If the foetus dies they resume their normal appear- 

 ance ag-ain. The advantag-e of this means of diag-nosis is 

 that it can be made without the patient's suspecting- the 

 object of the examination, and at a much earlier period 

 than any reliable physicial sig-n can be obtained. 



Fish Diet and Leprosy. — Dr. Hensen, of Berg-en, says: 

 "I do not think that there is an}^ choice g-iven to the bac- 

 teria of leprosy as to localization, just as there is none in 

 the tubercle bacillus. They develop wherever chance has 

 deposited them and wherever they find favoring- conditions 

 and no obstacles; for example, on the outside of the arm 

 where there is little muscular movement. On the ex- 

 posed portions of the body, oxyg-en retains and feeds them. 

 The inoculation by insects can only be .successful in these 

 places; in others, circumstances are too much ag-ainst 

 them. An internal inoculation is also easily imag-inable 

 and even probable. Salt fish is eaten all over the world ; 

 raw fish is eaten only in some countries, like Japan. Fish, 

 especially the carp, which is so g-eneral an alimentation in 

 Japan, where it is eaten raw and even alive, feed on the 

 larvse of mosquitoes, and may be suspected of commun- 

 icating- the spores of disease extracted by the insects from 

 the exposed parts of diseased bodies. If not, however, 

 spores, then the toxins of the bacilli. In reflecting-, then, 



