532 ANNUAL RECORD OF SCIENCE AND INDUSTRY. 



resistance which alone can prevent a new catarrh or inflam- 

 mation from attacking the lungs. The general effect, on the 

 other hand, of a mountain climate must be considered as an 

 active one, since increased demands are made upon the func- 

 tions of the organism from all sides mechanical, chemical, 

 and dynamic. Transactions of the Medical Faculty of Ma- 

 ryland^ 1875. 



EFFECTS OP CHOLERA ON THE MUCOUS MEMBEANE. 



In a valuable report to the United States government 

 upon the microscopic examination of the intestines in cases 

 of cholera, Dr. Danforth says that not only are the mucous 

 and muscular layers much disturbed and widely separated, 

 showing between them a beautiful loosely woven web of 

 areolar or connective tissue, but that not a single perfect 

 villus can be seen ; a few stumps only remain. The surface 

 of the mucous layer is quite denuded, and the clothing of 

 epithelium stripped from its surface. Peyer's glands are 

 not much altered. It seems almost beyond belief that a few 

 short hours can so totally change the intestinal surface. 

 Monthly Microscopical Journal^ 3Iarch^ 1876. 



THE BLOOD IN TYPHOID FEYEK. 



M. Comil has found, in the blood of the spleen of patients 

 who have died in the third week of typhoid fever, large 

 numbers of white globules, inclosing red globules to the 

 number of five or six, or even more, in a single cell. Though 

 this is nothing new, M. Comil is the first to insist npon their 

 multiplication in typhoid fever. Monthly Microscopical 

 Jour 71 a ?, 3Iay^ 1876. 



ASIATIC CHOLERA. 



Dr. Bonnafont, in a communication upon the Asiatic chol- 

 era read before the Academy of Medicine of Paris, enunciates 

 the following general propositions : First, this disease can 

 not originate spontaneously in any other country than In- 

 dia, but must reach other regions by transportation, or by 

 germs of the disease, atmospheric currents, or some other 

 vehicle ; second, all hygienic methods to avert this plague 

 must be initiated and maintained in the country of its ori- 

 gin; third, that it is not the dead bodies of animals aban- 



