APPLICATION OF METHOD IX INFECTIOUS DISEASES 137 



shall have to test one organ after another, until we 

 meet with one against which defensive ferments are to 

 be found. The exact study of the so-called nutritive 

 disturbances of the suckling will, from this point of 

 view, be of much interest. 



Moreover, we shall certainly be in a position to 

 determine experimentally, as well as by means of 

 clinical observations, the best method of attacking 

 certain poisons, such as lead, nicotine, alcohol 

 (methyl, ethyl, &c.), ether, chloroform, morphia, &c. 

 We shall be able to delimit primary and secondary 

 injuries, and to shed new light upon many problems 

 of toxicology and pharmacology. 



In conclusion, we should like to summarize the 

 researches which have been published since the appear- 

 ance of the first edition of this book. We ourselves 

 have at our disposal more than 500 cases of differen- 

 tial diagnosis between pregnancy and non-pregnancy. 

 In these cases complications of all kinds were 

 present, salpingitis, carcinoma, myoma, parametritis, 

 tuberculosis, &c. With the exception of one un- 

 certain case of probable abortion, no mistakes have 

 been made in our diagnosis. In addition, forty-two 

 cases of carcinoma have been investigated. The 



o 



serum of carcinomatous patients decomposed similar 

 carcinomatous tissues after boiling, but never tissues 

 of placenta. 



We ought to point out here, that we must never 



