1894.] MICROSCOPICAL JOURNAL. 219 



Concurrent Infections in Pulmonary Tuberculosis. — Dr. 

 T. M. Prudden lias published in the New York MedicalJournal 

 of July 7, 1894, an extremely interesting paper on some re- 

 searches which he has made upon the above-named subject. 

 Although his work is as yet incomplete there are strong indica- 

 tions that pulmonary tuberculosis is helped on very materially 

 by the Streptococcus pyogenes when acting in conjunction with the 

 Bacillus tuberculosis. This paper should be read by every ph}'- 

 sician. Perhaps Dr. Prudden, whose address is 437 W. 59th 

 street, New York Cit}', may have reprints for distribution. The 

 paper is accompanied by 12 photo-micrographs which lend 

 added interest to the subject. If his researches prove correct, 

 we shall have an intelligible explanation of why consumptives 

 are so much benefited by removal from cities and low alti- 

 tudes to the mountains and to the high lands of the Rocky 

 Mountain plateau. He has been led also to emphasize the need 

 of antiseptic treatment, the avoidance of aerial infection and the 

 giving of the most scrupulous attention to hygiene and sanita- 

 tion. Space does not permit us to give an outline of the ex23er- 

 iments performed with their results, but they are of the great- 

 est interest to the medical microscopist. 



Flies Carry Contagion. — The Egyptian physicians have de- 

 cided that the gonorrhceal ophthalmia which there becomes ep- 

 idemic in the hot months is carried by flies which are a perfect 

 pest in Egypt. The flies have been noticed to feed greedily 

 upon the secretions from sore eyes. Children only a few years 

 old are overtaken with the disease when no other means of in- 

 fection can be discerned than the operations of the flies. 



Contributions to the Microscopic Anatomy of the 

 Human Nasal Cavities, particularly of the Olfactory Mu- 

 cous Membrane. — Suchannek (Arch, of OluL, XXII, 4) rec- 

 ognizes in the human olfactory mucous membrane, in addition 

 to the supporting fibres, typical olfactory and basal cells: 



1. Genuine leucocytes, ninepin shaped and oval, with hyaline 

 contents. 



2. Cells which resemble leucocytes, but which })roved to be 

 cellular elements with a pedicle. 



3. Transition cells from the pigmented " bell cells," having a 

 small amount of pigmentation and hyaloid contents. He lias 



