56 



THE AMEEICAN MONTHLY 



[March, 



with the Hterature of the microscope 

 impHed a better knowledge of the 

 subject than he was generally cred- 

 ited with. 



For the past few years he has been 

 steadily on the decline, yet we never 

 heard him utter a word of complaint 

 over failing health or strength. Trem- 

 bling limbs and tottering steps never 

 lessened his enthusiasm over a new 

 lens, nor dampened his ardor to re- 

 veal the strise on pellucida to a doubt- 

 ing visitor. 



The infirmities of age at last over- 

 came him, and he died in the City 

 Hospital, on the 15th of last Decem- 

 ber, at the age of seventy-five years. 

 o 



Our Advertisers. — It is with no 

 little satisfaction that we take occasion 

 from time to time to make editorial 

 mention of the firms and individuals 

 represented on our advertising pages. 

 Several of these have been constantly 

 represented there since the first issue 

 of the Journal, and one of them, 

 Mr. Woolman, has held the same en- 

 tire page every month, which is the 

 highest priced page we have. Mr. 

 Woolman is a general dealer in micro- 

 scopical goods, and can furnish any 

 article, of whatever manufacture, that 

 may be desired. 



Taking the succeeding pages in 

 order, the Bausch & Loinb Optical 

 Co., doing business in Rochester, 

 where their large and perfectly ap- 

 pointed manufactory is located, and 

 also in New -York, where they have 

 a bi'anch office and salesroom, occupy 

 a prominent position. Our readers 

 may look there for the earliest an- 

 nouncement of the improvements and 

 novelties introduced by them. We 

 shall soon have occasion to refer more 

 particularly to some of the apparatus 

 which they have lately introduced. 



Mr. W. H. Bulloch has established 

 a good business in the manufacture 

 of inicroscopes, within the last eight 

 years. His stands are well-designed, 

 and adapted to the wants of a large 

 class of customers who desire good 

 stands at a moderate price. 



Mr. J. Grunow shai'es with Mr. 

 Zentmayer the credit of a long-estab- 

 lished business. His trade has been 

 mostly vs^ith physicians, and of late 

 years, until quite recently, his name 

 has almost been lost to the current 

 literature of general microscopy. He 

 has nevertheless been constantly at 

 work making improvements in his 

 stands and apparatus, and he now 

 offers a camera lucida, which was 

 figured in these pages last year, and 

 a form of the Abbe condenser, articles 

 worthy of especial notice in this place. 



Mr. William Wales was, for a long 

 time, the leading maker of objectives 

 in this country ; and, indeed, at the 

 present time he excels in the particu- 

 lar kind of objectives he makes, al- 

 though he has allowed his competitors 

 to go beyond him in the manufacture 

 of lenses of great angular aperture, 

 which have never engaged his atten- 

 tion. For objectives of excellent cor- 

 rections and clear definition those of 

 Mr. Wales stand equal to the best. 



Mr. Pease has been advertising the 

 " facility nose-piece" for a consider- 

 able time, and this w^e take to be good 

 evidence of its popularity. 



Mr. Sexton has done a good busi- 

 ness with the apparatus manufactured 

 by Mr. Gundlach, which we trust he 

 maybe able to continue, although ill- 

 health, \ve regret to learn, has greatly 

 troubled him of late. 



Mr. F.W. McAllister, of Baltimore, 

 who has been dealing in microscopes 

 for a long time, has determined to 

 give more particular attention to this 

 branch of his business in the future. 

 He should find a good class of cus- 

 tomers in Baltimore, where there is 

 a large and flourishing microscpical 

 society, and it is to be hoped that the 

 students and professors in the Johns 

 Hopkins Univei'sity will flock to his 

 store for all the necessary articles for 

 microscopical study. Mr. McAllister 

 should find a good trade springing 

 up in the Southern States. 



The new firm of W. H. Walmsley 

 & Co. has one of the most attractive 

 establishments in Philadelphia for the 



