The Microscope. 



Published on the 10th of Each Month, 



At 25 Washington Avenue, Detroit, Mich. 



All articles for publication, books for review and exchanges should be addressed to 

 the Editors of " The Microscope," 25 Washington Ave., Detroit, Mich. 



Subscriptions, Advertisements, and all business matters, are attended to by The 

 Microscope Publishing Co., 25 Washington Avenue, Detroit, Mich. 



No receipt will be sent for subscriptions received unless specially requested. 



r^ Specimens for examination should be sent to the Microscope Laboratory. 25 Washington 

 Avenue, Detroit, Michigan. In all cases the transportation charges on these specimens 

 must be prepaid, and special directions for packing and shipping will gladly be sent upon 

 application. 



Vol. VIII. 



DETROIT, JULY, 1888. 



No. 7 



ORIGINAL COMMUNICATIONS. 



THE GONOCOCCUS.i 



WILLIAM BUCKINGHAM CANFIELD, A. M., M. D. 

 Lecturer on Normal Histology, University of Maryland, Baltimore. 



T TNLIKE the bacillus tuberculosis, the gonococcus has never 

 ^^ niade that impression on the medical mind that it should, 

 and this is probably because the means of detecting it are not so 

 certain as in the case of the former, and also because the diagnosis 

 of a gonoirrhoea does not so much depend upon an examination of 

 the products of a urethral inflammation as the diagnosis of pulmo- 

 nary consumption depends on an examination of the sputa. In 

 medico-legal circles the gonococcus has demanded some attention, 



and it has undoubtedly been 

 of use in some cases of inter- 

 est. Although several investi- 

 gators had suspected its 

 presence as a cause of gonor- 

 rhoea, no one had done such 

 exact work to detect it as 

 Neisser,^ of Breslau. In 1879 

 he made a communication to 

 the " Centralblatt f. d. med. 

 Wissenschaften," in wh'ich he described what he has named the 

 "gonococcus," or specific micrococcus of gonorrhoea. 



Since this time many others have confirmed his work. In 35 



' Read before the Baltimore Microscopical Society, April 16, 1888. 

 - A. Neisser: " Centralblatt f. d. med. Wissenschaft," 1879, No. 28. 



