250 The Microscope. 



The September number of The Microscope will contain a full 

 report of the American Society of Microscopists meeting at Pitts- 

 burgh. As this meeting occurs on the 30th of the current month, 

 o\xr next issue will be delayed a few days; but it will be worth wait- 

 ing for. 



We learn that Miss M. A. Booth, Longmeadow, Mass., is 

 giving instructions in slide-mounting. They who have seen samples 

 of her work should be glad of an opportunity to learn how it is 

 done. We wish her success in this new field. 



Owing to a mi.stake, for which we are responsible, the second 

 paper by Mr. Quimby, on '• Insect Preparation," was not received in 

 time for this issue. It will appear in September. 



Mr. Arthur Doherty's address is, General Postoflfice, Sydney, 

 New South Wales, instead of Manchester, Eng., as given in our last 

 issue. 



Acknowledgments. — From James B. Shearer, Bay City, Mich., 

 a number of most admirable photo-micrographs. From Miss M. A. 

 Booth, Longmeadow, Mass., five bottles of washed diatoms from 

 various sources; also, slides of same, exceedingly well mounted. 



TECHNOLOGY, 



QUICK METHOD OF MOUNTING DRY OBJECTS. 



** I ""HE Scientific Americctn, among other excellent microscopical 

 -*- notes publishes the following: There is a certain class of 

 microscopic objects that need little or no preparation for mounting, 

 and require no protection beyond a well-secured glass cover. Many 

 of the objects are interesting, and, in some degree, valuable; but the 

 microscopist considers them hardly worth the trouble of mounting. 

 For such objects the method shown in the annexed engravings is 

 of great utility, as it permits of enclosing the object quickly, com- 

 pletely, permanently, and in presentable form; and while it seems 

 especially adapted to such objects as are common, and are liable to 

 remain unmounted, it is, of course, applicable to almost any dry 

 object. 



