bacillus, but also to other microbial infections — is perhaps the 

 best example of the trend of the author's teaching. It will not 

 be universally accepted ; but no one will be able to read the book 

 without being forced to re-examine his views upon many 

 obstetric questions. 



— \V. R. C. in the \ r eterinary Record, Oct. 27 , 191J." 



"This is not a second edition of Williams' Veterinary 

 Obstetrics published in 1909. It is a new work of much 

 more manageable proportions, being restricted to the anatomy 

 and physiology of the generative organs, normal and abnormal 

 pregnancy, parturition and dystocia, traumatic lesions incidental 

 to parturition, and, lastly, puerperal laminitis and tetanus, and 

 certain eclamptic diseases. . . . The point (nomenclature 

 of positions) is of little importance compared with what Professor 

 Williams calls the "dystocia of contagious abortion," which 

 may give rise to some misunderstanding, suggesting the presence 

 of Bang's bacillus. On the contrary, the expression is used 

 very broadly to indicate any infection which invades the uterus, 

 setting up a chronic metritis and imperilling the life of the 

 foetus, with or without actual abortion. The author appears to 

 regard any ante-partum infection of the uterus as the chief cause 

 of both maternal and foetal dystocia in cows. On p. 426 we 

 find, "formerly it was said that, if a cow suffered from dystocia, 

 if parturition were tardy, she would probably suffer from reten- 

 tion of the foetal membranes, or metritis ; now it may be said 

 that, if metritis exists in the pregnant cow, perhaps revealing its 

 presence after parturition as retained afterbirth, the parturition 

 will be tardy — there will be dystocia." Cause and effect are 

 thus reversed. ... By the publication of this treatise, 

 which promises to become a standard work on both sides of the 

 Atlantic, Professor Williams has enhanced his reputation as an 

 able obstetrician and teacher. — A. IV. in the I'eterinary Reviezv. 



" In view of the large field of usefulness which veterinary ob- 

 stetrics affords for the young practitioner, it is apparent that a 

 modern work on the subject by an author who has had the ad- 



