158 The Microscope. 



edition of his directory, by thus facilitating correspondence with 

 naturahsts in all parts of the world. 



Nature's Method op Conthollino Noxious Insects. By Henry Shimer, 

 A. M., M. D. Reprint. 



Notes on the "Apple Bark Louse," &c. By Henry Shimer, A. M., M. D- 



The Pathology op Hay Fever, by S. S. Bishop M. D. Reprint. 



The Cornell University Register, 1887-88. 



CORRESPONDENCE AND QUERIES. 



Columbus, Ohio, April 15, 1888. 

 Editors of The Microscope: 



The last number of The Microscope (April number), contains 

 "Notes on a Fasoldt Test- plate," by Dr. R. H. Ward, the same plate 

 I suppose, which Mr. Fasoldt presented to the A. S. M. two years 

 ago. At the Chautauqua meeting, in 1886, Prof. Burrill, then president 

 of the A. S. M., appointed a committee of three, composed of Dr. 

 R. H. Ward, Dr. Blackham and myself, to examine the plate, and to 

 report the result. Although this committee was appointed nearly 

 two years ago, I have never yet seen the plate, and consequently can 

 neither examine the same, nor report on it, and do not even know 

 who has it in his possession and withholds it from the committee. 

 Will you, through The Microscope, please ask the possessor of the 

 already famous plate to rise and explain, and to deliver the plate ? 



Yours truly, H. J. DETIHERS. 



Editors Microscope : 



In the January number of the Microscope appeared an editorial 

 upon the condition of our microscopical societies in general. I am 

 very forcibly impressed with the truthfulness of your charges, espe- 

 cially when you say: "That the majority of the members of local 

 societies are those who, without any special training, have accident- 

 ally or otherwise become interested in microscopy, bought a micros- 

 cope, and have joined a society to learn how to use it." 



I am going to take the liberty to make the above a pretext for 

 drawing the attention of your readers to a fact which has a more or 

 less bearing upon the subject. 



I am inclined to believe that this apathy, into which so many 

 members fall, is very largely due to a want of knowledge of how to 

 prepare even simple objects for examination. It is a fact to be 

 deplored, that so few men can be found who are able and willing to 



