ZOOLOGY AND BOTANY, MIOROSCOPY, ETC. 149 



Bbothers, a. — Microscopic Writing. 



[Webb's Lord's Prayer, &c. — Machine for writing, purchased by Mr. Rideout 

 at the 1862 Exhibition. 



Chem. News, LIU. (1886) pp. 33-4. 

 „ „ [Electric Spark under the Microscope.] 



[Produced by a carbonate of potash battery (with an induction coil) at the 

 extremities of two lead-pencil points.] 



Proc. Ma7ichester Lit. and Phil. Soc, XXIV. (1885) p. 20. 



Bulloch, W. H. — About Magnification. 



[Queries as to the power of 1 in. lens, formula and power of 2 in. eye-jjiece, 

 and length of a 10 in. tube.] 



Amer. Mon. Micr. Journ., VI. (1885) p. 240. 

 Bulloch's (W. H.) Cohweh Micrometer. ISiq^ra, p. 132.] 



Amer. Mon. Micr. Journ., VI. (1885) pp. 239-40. 

 Case, Convenient Microscopical. 



[" There are a great many pocket cases for microscopical mounts in the 

 market, but the most convenient article for the purpose that we have seen 

 is a flat muslin box which does not take up much more room than a 

 large pocket-book. It contains four trays, each of them mude to hold six 

 slides lying flat, thus exposing the label as in the large cabinets " 

 (Queen & Co.'s).] 



St. Louis National Druggist, VII. (1885) p. 230. 

 Castellaenau y de Lleopart, J. M. DE. — Vision Microscopica. Notas 

 sobre las Condiciones de Verdad de la Imagen microscopica y el mode de 

 expresarlns. (Microscopical Vision. Notes on the Conditions of resemblance 

 in Microscopical Images and the Method of Delineation.) In part. {^Post."] 

 Annl. Soc. Espan. Hist. Nat., XIV. (1885) pp. 257-88 (1 fig.). 

 COE, H. 0.— See Fricdlander, 0. 

 Cole's (A. H.) Self-adjusting Frog-plate. 

 [No description given.] 



Micr. Bulletin (Queen's), II. (1885) p. 41. 

 Cox, J. D. — [Letter accompanying Photo-micrographs of Diatoms.] 



[Also comments on Dr. Cox's views by M. W. Prinz, who considers the new 

 photographs " lead to the same confusions and consequently merit the 

 same criticisms " as the previous series.] 



Bull. Soc. Belg. Micr., XII. (1885) pp. 7-11. 

 CzAPSKi, S. — [Abbe's Optical Theories.] 



[Conclusion of review of Dippel's ' Grundziige der Allgemeinen Mikro- 

 skopie.' Cf. Vol. V. (1885) p. 1079.] 



Zeitschr. f. Instrumentenk., V. (1885) pp. 405-8. 

 Evans, F. H. — Objectives. 



[As to surprising discrepancies in his measurements of the magnifying 

 powers of various objectives.] 



Engl Mech., XLII. (188G) p. 361. 

 E V E R E T T, J. D. — Outlines of Natural Philosophy for Schools and general readers. 

 [Microscope, pp. 188-91, 1 flg.] 



335 pp. and 216 figs., 8vo, London, 1885. 

 Ewell, M. D. — Prof. Eogers' Ruling Machine and Method of ruling Standard 

 Micrometers. \_Post.'] The Microscope, V. (1885) pp. 221-26. 



Flint, J. M. — Rotary Object-carrier. \_Supra,T^. 133.] 



Amer. Men. Micr. Journ., VI. (1885) pp. 204-5. 

 Engl. Mech., XLII. (1885) p. 275. 

 F L, H. — Nouveau Microscope. (New Microscope.) \_Post.'] 



Arch. Sci. Phys. et Nat., XIV. (1885) p. 575. 

 Frey, H. — Das Mikroskop und die Mikroskopische Technik. (The Microscope 

 and Microscopical Technique.) 



8th ed., vi. and 524 pp., 417 figs., 8vo, Leipzig, 1886. 

 Fricdlander, C. — The Use of the Microscope. Transl. by H. C. Coe. 



2nd ed., 200 pp., 8vo, New York, 1885. 



