228 THE AMERICAN MONTHLY [Aug, 



centennial exliibition, 1876, deposited in the Yale Col- 

 lege Library, exhibited in London, Berlin, Paris, Brus- 

 sels, G-lasgow, Newcastle-on-Tyne, &c., and pronounced to 

 be inferior to none ever taken. 



A somewhat technical account of the one-seventy-fifth, 

 especially as to photography, was published in the Au- 

 gust, 1879, number of the American Journal of Arts 

 and Sciences, Journal de Micrographie, Paris, 1879, and 

 Scientific American, 1879! 



6. The one-seventy-fifth inch objective verified the 

 morphology of Syphilitic Blood. 



7. It verified the morphology of epidemic influenza. 



8. It beautifully photographed alcoholic yeast. (Cere- 

 visisB saccharomyces). 



9. It elicited the following from Dr. 0. W. Holmes, 

 when, by his invitation, Dr. Harriman and myself had 

 made him a lantern demonstration. Just as we were leav- 

 ing he said : " Grentlemen, never has any one come to my 

 house who has taught me so much as you have." 



10. At London, 1889, Sir M. Mackenzie asked me to 

 let him see the one-seventy-fifth. It was shown and 

 thereby its owner was introduced at a banquet given, as 

 he said, " to persons of the very highest influence in Lon- 

 don," — in language that can only be uttered to the most 

 intimate friends or college classmates. These guests 

 were Col. North, the Nitrate King, Sir Spencer Wells, 

 Sir Augustus Harris, Sir W. A. Mackinnon, Sir A. Isaacs 

 (Lord Mayor, 1889-90), Mr. McKenna (the young mil- 

 lionaire), Edmund Yates, Surgeon-Major Johnston (Alder- 

 shot) and A. N. Broadley. 



11. It introduced its owner to the War Office at the 

 invitation of Sir W. A. MacKinnon, the highest medical 

 official of the British army, to show its work to his staff". 

 Afterward, it was said : "Never has anyone here shown us 

 such good work with the microscope." 



