2186 THE AMERICAN MONTHLY [Sept, 



black, blae-bliick, green, red and brown. The stainings in 

 black and brown are particularly good for study by lamp-light, 

 and all of the colors named above give surprisingly strong 

 images in photomicrography. I would suggest the importance 

 of workers in microscopy carrying on this line of study, as the 

 process of staining, renders possible much that was very difficult 

 or absolutel}^ impossible with the old method of treatment. — 

 William Lighton, Omaha, Nebr. 



MICROSCOPICAL NOTES. 



Microscopicol Praxis. — This is the name of Dr. Stokes' new 

 book, just issued. It will be of much assistance to the novice 

 but he who would go extensively into such matters will take up 

 Carpenter or Gage after mastering the outlines here presented, 

 and some may be induced to do so l)y the pleasing introduc- 

 tion here acquirec^. 



To Keep Metallic Objects From Rusting. — Mix 11 parts 

 of white wax and 2 parts of suint and dissolve in spirit of tur- 

 pentine. With a soft sponge or other similar object apply the 

 solution to the surface to be protected. Objects so protected 

 will remain free from rust indefinitely. 



NECROLOGY. 



Ezra Hollis Griffith, A. M.— On August 18th Professor E. 

 H. Griffith died at his home in Chicago, at the age of 56. He 

 was born in Oneonta, Otsego County, N. Y., enjoyed a liberal 

 education, and throughout his life was interested in literary and 

 scientific pursuits. 



In early life, while a teacher, Professor Griffith became inter- 

 e-ited in the use of the microscope. The desire for a portable 

 instrument led to his invention of the Griffith microscope, a 

 very noted and popular instrument among specialists. He was 

 largely instrumental in organizing the American Microscopical 

 Society, and for several years had charge of what is known as 

 " The Working Session." In recognition of his services he was 

 made a member of the Royal Society of Microscopists of Lon- 

 don. 



Being possessed of generous impulses he was easily touched 



