igo 



THE AMERICAN MONTHLY 



[October, 



jectives without cover correction ; the 

 third to be dry working, with cover 

 correction, and the fourth to be a 

 homogeneous immersion objective 

 with cover correction, and all to be of 

 the highest possible grade of work- 

 manship. The stand should have a 

 tube of such length that the standard 

 distance of two inches from the front 

 surface of objective to diaphragm of 

 eye-piece can be obtained on it, and 

 be furnished with six eye-pieces, viz. : 

 two-inch, one-inch and three-fourth 

 inch Huyghenian, and one-half, one- 

 third, and one-fourth inch solid." 



Important papers were presented 

 by Dr. Thomas Taylor and Dr. M. L. 

 Holbrook. The former on Some In- 

 ternal Parasites of the Domestic Fowl, 

 the latter on the Terminations of the 

 Nerves in the Kidneys. 



Prof. J. M. Mansfield also discussed 

 Division of Labor Among Microscop- 

 ists ; Dr. L. M. Eastman, Some Egg- 

 like Bodies in the Liver of the Rabbit, 

 and Dr. S. Hudson, Torula (Sarc/m^o- 

 viyces) CerevissicB. He had found it 

 a never-failing test for diabetic urine. 



Dr. V. S. Clevenger gave a dis- 

 course on the Pathology of the Brain. 



Several modified or new pieces of 

 apparatus were described. 



Gov. Cox described his new Micro- 

 scope with concentric movements ; 

 D. L. Mcintosh his Solar Microscope 

 and Stereopticon, with ether-oxygen 

 light attachment. 



The following manufacturers and 

 dealers were present and exhibited 

 examples of the latest and best micro- 

 scopes and accessories : — 



W. H. Walmsley, Philadelphia, Pa. 



Jas. W. Queen & Co. " 



Edward Bausch, Rochester, N. Y. 



L. R. Sexton, 



W. H. Bulloch, Chicago, 111. 



L. D. Mcintosh. 



Baker's Seaside Microscope. 



Mr. Thomas Curties has favored us 

 with the illustration given herewith of 

 the seaside microscope, made by 

 Messrs. C. Baker & Co., of London 



(fig. 36). We have used this microscope 

 from time to time during our stay in 

 London, and have been so much 

 pleased with its convenience, solidity 



Fig. 36. — Baker's Seaside Microscope. 



and lightness that we are pleased to 

 recommend it to persons who desire 

 such an instrument for observations 

 in the country or at the seaside. 



The merit of this instrument is not 

 that it packs into a very small com- 

 pass, for, on the contrary, the box 

 that encloses it is rather large as com- 

 pared with the cases of many of the 

 travelling microscopes now to be ob- 

 tained. It is, however, not incon- 

 veniently large, and is very light. It 

 is capacious enough to hold the ne- 

 cessary accessories for ordinary ob- 

 servations in the country. 



The stand itself is very firm, and in 

 this respect fully equal to larger and 

 more costly instruments. A fault with 

 many of the traveling microscopes, is 

 that they are so complicated as to be 

 troublesome to set up, while at the 

 same time they are costly by reason 

 of their complexity, and it may be 

 added, they are often inconveniently 

 small for use. This microscope is 

 ready for use at any moment. It has 

 only to be taken out of its case, and 



