ZOOLOGY AND BOTANY, MICKOSCOPY, ETC. 325 



had hitherto been seen — and the apochromatic Microscope-objectives showed 

 how advance in that direction had been made by means of the new glass — 

 the demand for such improved lenses would be practically unlimited. 



Microscopic Justice. — Under this heading the 'Evening News ' of 16th 

 March says : — " Mr. Justice Chitty's Court presents a curious scene to-day. 

 The judge is trying a patent case relating to waterproof fabrics. The 

 Attorney-General, Mr. Moulton, Q.C., and Mr. Finlay, Q.C., are engaged 

 in the case, and the learned counsel are provided with Microscopes to 

 examine the materials. Another Microscope is placed upon the judge's desk, 

 and during the morning witnesses have been seated beside Mr. Justice 

 Chitty peering through the Microscope to detect differences of manufacture 

 in the fabrics." 



LoEWENHERz, L, — Zur GescMclite der Entwicklung der meclianisclien Kunst. (On 

 the history of the development of mechanical art.) 

 [Includes Q. F. Brander (Glass Micrometers) and Fraunhofer (Achromatic Lenses 

 and Microscope).] 



Zeitschr. f. Instrumentenk., VI. (1886) pp. 405-19. 

 Macfarlane, J. M. — On the Progress of Microscopical Eesearcli. 

 [Presidential Address to the Microscopic Section.] 



Trans. Edinburgh Naturalists' Field Club, I. (1885-6) pp. 319-26. 

 Matthiessen, L. — Ueher eine neue Etagenloupe. (On a new "tier " lens.) 

 [Discusses the lenses described in this Journal, 1886, p. 1065.] 



Central-Ztg. f. Opt. u. Mech., VII. (1886) pp. 109-10. 

 See also Nature, XXXVo (1887) p. 331. 

 M A Y A L L, J., Jun. — Cantor Lectures on the Microscope. 



[Reprint in a collected form of the lectures noted in Journal, 1886, p. 869.] 



97 pp., 103 figs., 8vo, London, 1886. 

 Pouchet, C. — Prof. C. Rohin, Sa Vie et son (Euvre. (Life and work of Prof. C. Robin, 

 Hon. F.R.M.S.) (Concld.) 



Journ. de I'Anat. et de la Physiol., XXII. (1886) pp. xlix.-clxxxiv. 

 Scientific Directory. Sci.-Gossip, 1887, pp. 40, 65. 



Western Microscopical Club. 



[Report of meeting on 7th February, 1887, with system of classification of Mr. 

 Crisp's Collection of Microscopes, &c.] 



Engl. Mech., XLIV. (1887) p. 539. 



0. Technique.* 

 (1) Collecting Objects, including' Culture Processes. 



EsMAECH, E. — TJeher die Reincultur eines Spirillum. (On the pure culture of a 

 Spirillum.) \_Post.'] Centralhl. f. Bacterial, u. Parasitenk., I. (1887) pp. 225-30. 



Petri, R. J. — Eine kleine Modification des Koch'schen Plattenverfahrens. (A small 

 modification of th.e Koch plate process.) \_Post.'] 



Centralbl. f. Bacterial, u. Parasitenh, I. (1887) pp. 279-80. 



Smith, T. — The relative value of cultures in liquid and solid media in the diagnosis 

 of bacteria. Med. News, 1886, II. pp. 571-3. 



(2) Preparing Objects. 



Preparing Goblet-eells.f — Dr. J. H. List examines goblet-cells, if 

 possible, in aqueous humour, iodized serum, and • 5 per cent, salt solution. 



As isolation media, excellent results were obtained from Miiller's fluid 

 after acting for several weeks, from • 5 per cent, osmic acid in 24 hours, 

 followed by teasing out in distilled water or dilute glycerin (equal volumes 

 of glycerin and distilled water), and from 0*1 per cent, chromic acid in 



* This subdivision contains (1) Collecting Objects, including Culture Processes ; 

 (2) Preparing Objects ; (3) Cutting, including Imbedding and Microtomes ; (4) Staining 

 and Injecting ; (5) Mounting, including slides, preservative fluids, &c. ; (6) Miscella- 

 neous. 



t Arch. f. Mikr. Anat., xxvii. (1886) pp. 481-588 (6 pis.). 



