The Microscope. 141 



and these again convey them to and discharge them into the central 

 lacteal. 



The columnar epithelium in specimens which have been teased 

 out after 24 hours, immersion in dilute chromic acid (1 of acid to 

 2,000 salt solution), it often happens that this striated border of 

 the epithelium comes away from the cells in shreds. The most use- 

 ful stains are iodine-green and carmine or pi cro- carmine, chloride 

 of gold, nitrate of silver, logwood, eosin, etc. 



PROCEEDINGS OF SOCIETIES 



WELLESLEY COLLEGE MICROSCOPICAL SOCIETY. 



'' I ""HE regular monthly meeting of the Scientific and Microscop- 

 -*- ical Society was held Saturday evening, March 24, the presi- 

 dent in the chair. After the roll-call and reading of the minutes 

 of the last meeting, Miss Gilchrist of the botanical department, gave 

 an interesting paper on the " Dissemination of Seeds," illustrated 

 by a large variety of seeds and fruits showing structure of appen- 

 dages expressly designed to secure and facilitate transportation from 

 place to place. A number of slides arranged for the microscope 

 also illustrated the same subject. At the close of the paper the 

 society adjourned and a short time was spent by the members and 

 their guests in examining the slides placed under the microscopes, 

 and the various seeds and fruits of larger size that had been used 

 to illustrate the paper. 



ST. LOUIS CLUB OF MICROSCOPY. 



A T the meeting of this club, held April 3, the members reported 

 -*• -^ on the examination of commercial cream of tartar for starch. 

 Not one sample from drug stores contained this adulterant, while 

 about seventy-five per cent, of the grocery store specimens were 

 diluted with corn-starch. 



J. C. Falk will entertain the club with some subject at the next 

 meeting. The members will also report on the examination of pow- 

 dered rhubarb. 



Prof. "Whelpley exhibited one of the Griffith focus indicators 

 and recommended it for use when showing specimens to persons 

 unfamiliar with the microscope, as they are liable to crush cover 

 glasses unless some precaution is taken. 



