224 THE MICROSCOPE. 



ONE of those elegant mounts that occasionally feast the eyes 

 of the microscopist comes to us from Frank Ritchie, Troy, N. 

 Y. It is a specimen of the Psephenus Lecontei. "The chief interest 

 of this beetle," says Prof. Kellicott, "centers in its larva which is 

 aquatic, flat and so closely resembles the extinct trilobites that 

 DeKay first described it as a new gen. et spec, of the Crustacea." 



MILTON BRADLEY & CO., of Springfield, Mass., are selling 

 cabinets containing four or five hundred specimens for only 

 three or four dollars. They also make cases for holding one, two, 

 or more slides, to serve as protection for slides to be sent through 

 the mail. These cases will retail for about a cent each, or even less 

 when several are ordered. The firm will give further particulars. 



PERSONS are hereby cautioned against negotiating for a Tolles* 

 •Jpth of i8o°, made in 1878. The same has been stolen from a 

 subscriber and any person hearing of such a glass being offered for 

 sale will please communicate the fact to us at once. 



THE price of the Journal of the Postal Microscopical Society of 

 England, Alfred Allen, editor, is two dollars a year. It is 

 issued quarterly. 



The price of The Journal of the Royal Microscopical Society, 

 Frank Crisp, editor, is seven dollars a year. It is a bi-monthly of 

 125 pages. We will forward subscriptions for either of the above. 



PLEASE renew for volume four, commencing as a monthly the 

 middle of January next, by sending us eighty cents at once. 

 All old subscribers, however, are entitled to the January and 

 February numbers. 



The regular price for the twelve numbers of volume four will 

 be one dollar. 



WE have only a very few sets of volume one of this journal. The 

 price from this date will be $2.00. The price of volume two 

 will be $1.50, and the price of the five numbers of volume three 

 will be $1.00. 



OUR genial and ever-good-natured friend, Mr. Romeyn Hitch- 

 cock, is suffering from another attack of his chronic disease, 

 but this time it is directed toward his old publishers, Messrs. S. E. 

 Cassino & Co., circulars concerning which have been freely dis- 

 tributed. 



