298 THE MICROSCOPIST. 



Dr. Cobbold states that its larval state is passed in the 

 stomach of the mosquito. 



Dr. Beale has found cells similar to white corpuscles, 

 but larger, in cases of cholera and of pyaemia. Many of 

 these were too large to pass the capillaries. 



The tendency of cells to adhere is thought by Beale to 

 depend on a reduction of the amount of water. He ob- 

 served such tendency to be increased after watery evacua- 

 tions by Epsom salts. 



Dr. Coupland described corpuscles, of a red color, ^^th 

 of an inch in diameter in blood from a case of Addison's 

 disease. They disappeared as the patient improved. 



Dr. Lostorfer, of Vienna, professed to be able to distin- 

 guish syphilitic blood by the presence of peculiar bright 

 bodies in from one to five days after it had been taken 

 from the patient. The drop of blood on a slide, covered 

 with thin glass, is placed under a bell-glass arranged as a 

 moist chamber. In from one to five days, in addition to 

 vibriones, bacteria, and sometimes sarcina, there appeared 

 these bright bodies, some at rest and some vibratile. 

 Many of the larger ones were seen to increase by budding. 

 He calls them syphilitic corpuscles. 



Epithelial elements from the lining of the bloodvessels 

 have been seen in the blood. Cancer-cells may in this 

 way be transferred to distant parts. Epithelial cells be- 

 coming impacted in the smaller vessels may give rise to 

 thrombosis and abscesses, as in puerperal and pysemic 

 fever. 



Dr. Beale's researches upon the cattle-plague led him 

 to believe that particles of germinal matter (contagium) 

 introduced from without into diseased blood, and the 

 products of their decay, may give rise to local congestions 

 and various eruptions, as boil, carbuncle, and pustule. 



Dr. Salisbury thinks that rheumatism may be detected 

 long before the appearance of active symptoms by the 

 excess of fibrin deposited in a drop of blood. He states 



