136 SUMMARY OF CURRENT RESEARCHES RELATING TO 



optical principles has been attested by his brilliant publications ; whose 

 attainments have been recognized by his election to membership in 

 various organizations, and whose mechanical skill and conscientious 

 carefulness are still shown in the large variety of instruments issued 

 from his establishment. 



" 2. That a record of this action be forwarded to the family of Mr. 

 Zentmayer as a token of our heartfelt sympathy with them in this 

 bereavement."* 



American Society of Microscopists. — Meeting of, in 1888. 



Amer. Mon. Micr. Journ., IX. (1888) pp. 96-7, 133-4, 153-4, 187-95. 



The Microscope, VIII. (1888) pp. 242-3, 275, 377-80. 



Queen's Micr. Bulletin, V. (1888) p. 16. 



St. Louis Med. and Surg. Journ., LV. (1888) pp. 163-4. 



Fabre-Domergue. — Premiers principes du Microscope et de la Technique micro- 



scopique. (First principles of the Microscope and of microscopical technique.) 



viii. and 280 pp., 32 figs., 8vo, Paris, 1889. 

 Internationalen Ausstellung zu Briissel, Die wissenschaftlichen Instrumente auf der. 

 (The scientific instruments at the International Exhibition at Brussels.) 

 [Microscopy only sparingly represented.] 



Zeitschr.f. Instrumentenk., VIII. (1888) pp. 394-8. 

 James, F. L.— W. J. Lewis, A.M., M.D., F.E.M.S., President American Society of 

 Microscopists. 



[Biographical sketch.] The Microscope, IX. (1889) pp. 7-10 (portrait). 



[Ma NT ON, W. P., and others. — Lantern Illustrations of Microscopical Subjects.] 

 [" We notice that physicians are beginning to avail themselves of the lantern 

 to illustrate their papers on microscopical subjects. At the recent meeting 

 of the American Medical Society, some excellent views of diseased tissues 

 were shown, and we notice that Dr. A. G. Field, of Des Moines, recently 

 entertained the Iowa State Medical Society by a stereopticon exhibition of 

 the microbes mentioned in his paper before that body. This is an excellent 

 method of impressing an audience with the idea that the author of an article 

 knows what he is talking about. We expect to see the lantern commonly 

 used for such purposes in the near future."] 



The Microscope, VIII. (1888) p. 207. 



Microscope and Adulteration. Tit-Bits, XIV. (1888) p. 305. 



KoYSTON-PiGOTT, G. W. — Microscopical Advances. XLL, XLIL, XLIII. 



[Attenuated dots and lines. Size of fine threads or of organic particles. 

 Delicate attenuations and anti-diffraction micrometer. Attenuations. Mr. 

 Boys' infinitesimal glass gossamers. The use of a new micrometer gauge 

 (consisting of parallel fibres of spun glass cemented on to a brass plate pro- 

 jecting freely in the field of the eye-piece).] 



£ngl. Mech., XL VIII. (1888) pp. 325, 389 (1 fig.), 431-2 (7 figs.). 

 Schott & Gen. in Jena, Neue optische Glaser des glastechnischen Laboratoriums von. 

 (New optical glass from the glass laboratory of Schott & Co., of Jena.) 

 [Note as to further kinds of glass, principally for photography.] 



Zeitschr. f. Instrumentenk., VIII. (1888) pp. 392-3. 

 Stokes, A. C. — Microscopical Work for Amateurs. 



[Description of Leeuwenhoek's Microscopes and his work.] 



Amer. Mon. Micr. Journ., IX. (1888) pp. 219-23 (5 figs, and 1 pi.). 



* Journ. New York Micr. Soc, iv. (1888) pp. 178--4. Queen's Micr. Bulletin, v. 

 (1888) p. 24 (portrait). 



