362 The Microscope. 



Mr. Thos. D. Coleman (Johns Hopkins University), exhibited a 

 new microscope by Leitz of Wetzlar, which he had just received 

 from Germany. The general opinion of all present was that it was 

 a very line instrument. 



Prof. P. R. Uhler (Peabody Institute), spoke of the importance 

 of using the microscope, from a geological stand-point. He thought 

 that if insects and microscopical life which is thrown with the soil 

 were examined, much light would be thrown upon the character of 

 the region. 



Dr. Lewis M. Eastman referred to a diatom slide prepared by 

 Sir John Kinker of Amsterdam, and recently sent to him by that 

 scientist. It represents in an arranged manner, one of each variety 

 of diatom found in the Monterey Earth, He thought that such 

 slides coming from such a distinguished worker, were of great value 

 to the scientist, and of marvelous beauty to all. 



EoBT. T. Wilson, M. D., Secretary. 



MICROSCOPICAL SOCIETY OF PITTSBURG. 



A T the annual meeting of this Society, held on October 25, 

 -^ ^ 1887, C. C. Mellor was re-elected unanimously to his third 

 term as President. G. H. Clapp, of the firm of Hunt & Clapp, 

 metallurgists and chemists, was made First Vice-President, and 

 W. B. Jackman, of the chair of Natural History in the High 

 School, Second Vice-President. Dr. H. Dupuy and James H. 

 Logan were chosen Secretaries, and Dr. Gale French, Treasurer. 

 The report of President Mellor for the year just completed showed 

 the Society to be in a prosperous condition, with seventy-eight 

 active members. A large book-case has just been put in their 

 room, together with a couple of hundred works of microscopical 

 literature. Considerable other material has also been ordered, 

 including microscope-stands, mounting- apparatus, and a number 

 of English books on microscopy. 



The programme outlined by Mr. Mellor in his address looks 

 forward to original researches by the members, who were counseled 

 to pursue special lines of investigation, and he expressed the hope 

 that at some period in the near future the scientific societies of 

 Pittsburg might be gathered together in an Academy of Science, 

 with suitable rooms and apparatus for the most advanced work. 

 Donations of slides for the Society's collection were reported fi'om 



