148 THE AMERICAN MONTHLY [May, 



before any treatment, the rods were met with in fairly large num- 

 bers ; later on, as the healing process advanced, their numerical 

 strength gradually and steadily decreased, while after the ulcer 

 had become clean or healthy looking the micro-organisms disap- 

 peared altogether. 



MEDICAL MICROSCOPY. 



The Centrifugal Method of Preparing Urine for Micro- 

 scopical Examination. — A specimen of urine was divided be- 

 tween two examiners. One employed the centrifugal method, 

 found no casts, and insured the man who was being examined for 

 life insurance. The other allowed the urine to stand twelve 

 hours in a conical glass, found hyaline casts, and declined the risk. 

 This would seem to condemn the centrifugal method. 



Carbolic Acid Poisoning. — By accident a 5 percent, solution 

 of carbolic acid was administered to a child 10 months old in 

 connection with an enema. Sulphate of sodium was injected as 

 an antidote. During the first two days afterward the urine was 

 turbid and dirty green, contained some albumen, and gave car- 

 bolic acid reaction. Microscopical examination of sediments 

 revealed the presence of scanty red blood-corpuscles, epithelium, 

 and abundant crystals of uric acid. 



MICROSCOPICAL NOTES. 



American Microscopical Society. — The next meeting of 

 this society will be held at Madison, Wis., on Monday, Tuesday, 

 and Wednesday, August 14, 15. and 16, 1S93. 



Dismissed by Secretary Morton. — Secretary Morton has 

 ordered the dismissal of forty-one assistant microscopists, one 

 clerk, and a book-keeper attached to the Bureau of Animal In- 

 dustry and assigned to duty in Chicago. The dismissals take ef- 

 fect April 23. The reason for the dismissal is the reduced con- 

 dition of the work. 



Correction. — Throughout the article printed on pages So- S3. 

 March number, the word spelled Paramechun should, according 

 to the author, be spelled Paraiuceciiim. The word Vorhofe is a 

 plural form and not singular as indicated in the article. 



MICROSCOPICAL SOCIETIES. 



Washington, D. C. — L. M. Mooers, Sec'y. 

 February 14, i8gj. — Dr. E. A. Gibbs read a paper on Apo- 

 chromatic Objectives. Dr. W. W. Alleger read a paper on the 

 preparation and mounting of micro-chemical crystals. Two new 

 members were elected. 



