( 6 ) 



Mycetozoa. page 



MiLiAKABis, S. — Tylogonus Acjavm 427 



Protophyta. 

 o, Schizophyceae. 



WiLDBMAN, E. DE — Sceuedesmus 427 



Pebagallo — Mediterranean Diatoms .. 427 



Scbmidt's Atlas der Diatomaceenhunde 428 



Hansgikg, a.— Bacillus muralis and Grotto-Schizophycese 428 



B. Schizomycetes. 



ScHOTTELius — Nucleus or nucleoid bodies of Schizomycetes .. 429 



TuVSTAG, A.— Micro-organisms of Mytilus edulis .. .. .. .. 429 



LewiN: — Sporeformation in Bacillus Anihrads .. .. 429 



Beyerinck, M. "W. — Bacteria of the Tubercles of Papilionaceie 430 



Gamaleia, 'N.— Natural mode of infection of Vibrio Metschnikovi 431 



HuEPPE, F. — Sueppe's Bacteriology .. .. 431 



MICROSCOPY. 

 a. Instruments, Accessories, &c. 



(1) stands. 



Dick and Swift's Patent Petrological Microscope (Fig. 57) . . 432 



Konkolt's (N. v.) Microscope for observing the Lines in Photographed Spectra 



(Fig. 58) .. .. .. .. .. .. .. ,. .. 436 



„ „ Microscope for Beading the Enorre-Fuess Declinograph (Fig. 59) 437 



Leitz's iVb. 1 6towQ! (Fig. 60) .. .. 438 



Atikhis's large Projection and Compound Microscope (JE'l^iQl'Ki) 438 



Charles I. M'croscope (Figs. 61-64) .... .. .. .. .. .. 440 



" Dec DE Chaulnes'" Mcroscope (Fig. 65) .. .. .. 442 



(3) Illuminating and other Apparatus. 



Ward, E. H. — Rogers^ Eye-piece Micrometer (Fig. QQ) 443 



EwELL, M. J).— Glass versus Metal Micrometers .. .... .. 445 



„ „ Micrometer Measurements . . . . 447 



Klaatsch's (H.) JBafZmZ ilKcrome^er (Fig. 67) .... .. .. 447 



Krtstnski's (S.) Eye-piece Micrometer and its uses in Microscopical Crystallography 448 



(4) PhLotomicrogrrapiiy^ 



Moeller's (H..) Photomicrographic Apparatus (Fig. ^^^ .. .. .. 450 



^^m, H.KV&SER, k Go: s Photomicrographic Apparatus (¥ig.Q^) ,. 452 



Schmidt and Haensch's v^jjpara^ws /or Photographing the Tarnish Colours of Iron 



Surfaces . . . . 453 



(5) Microscopical Optics and Manipulation. 

 Aperture Table 454 



(6) Miscellaneous. 

 Cox, C. F. — Letter of Darwin to Owen 454 



/3. Technique. 



(1) Collecting Objects, includingr Ctilture Processes. 



Hardy, W. B. — Collecting Salt-water Sponges 456 



Benoist, L. — Nutritive Media for the Cultivation of Bacteria -. .. 456 



Moore, N. A. — Method of Preparing Nutritive Gelatin .. .. .. 457 



Petri, E. J. — Presence of Nitric Acid in Nutrient Gelatin 457 



