( 6 ) 



TAOB 



liAVKsyr, "E.— Organic nourishment of Beer-ferment 785 



Ekmenoem, E. YAV—Scheuerlen'e Cancer JiacilluB 785 



WixoGBAPSKY, S. — Iron-hacteria 786 



ToMAKCiiKK, A., & A. Hansgibo — Bncillua muralls 786" 



1'razmow3KI, a. — Spore-formation in Bacteria 787 



Billet, A. — New Marine Bacterium 789 



Fkaxkland, Grace U., & Per(7T F. Fbakkland — New and Tyincal Micro- 



organifmn from Water and Soil 789 



BAiMOAKTEN'a Vatlwlogical Mtjcolocjy 791 



MICROSCOPY. 



a. Instruments, AccessorieSj &c. 



(1) Stands. 



1i\vv.\^s Five-tuhc Microscope (Yig. \2^)) 792 



Scjueck's (F. W.) Meat-examining Microscope (^i^. 12V) 793 



„ Travelling Microscope (Fig. 122) 794 



Zeiss' a Ila Microscope — Babuchin's Microscope 794 



Leitz'b Demonstration Microscope — Old Demonstration Microscope (Figs. 123 and 



124) 794 



\VmTE, S. S.— Dentist's Examining Glass {Fig. 125) 795 



Bacscu AND IjOsib Optical Co.'s "TFa/c/ima/ier G/«8«" (Fig. 120) 795 



Ga^z's (J.) Pinahoscope with Dreijfus's lieflector (Fig. 127) 79C 



Tiu-ocvLAn, Quadri-ocular, &c., Prisms (Figs. V2S-lii2) 796 



(2) Eye-pieces and Objectives. 



Zeiss's " Compensation Eye-piece G with 1/1 Micron-division'' (Fig. 133) .. .. 797 

 (3) lUuminatingr and other Apparatus. 



BrT.nyov's (A.)Drawii>g-hoard(Viga.l3i-139) 798 



Babes' (V.) -f/o« S;a<7e (Fi-Jts. 140 and 141) 800 



CiiABRY, L. — Capillary Slide and accessories for the examination of Ova (Figs. 142 



and 143) .. 801 



Bekke, F. — Measuring Corrosion Surfaces in Iron Pyrites (Fig. Hi) 803 



Howla'Sd's ('W.) Reversible Comjyressorium (Fig. I'iS) 803 



Beaumont's (C. K.) lieservoir Life-slide (Figs. 14G and 147) 804 



JIOLUAn's Current Slide 806 



Stokes, A. C. — Life Slides 806 



IjA^ivs for Microscopical Work 807 



Malassez, L. — Tuhes for Microspectroscopic Analysis (Fig. 1\S) 807 



(4) Photomicrograpliy. 



HznsTEHT's (Ti.) Photomicrographic Apparatus (Fig. li^) 803 



'iHEMnA.vss's (1^.) Focusing Arrangement (Fig. lf)Q) 809 



PiERSOL, G. A. — Drawings v. Photographs. — Screen for the Abbe Camera Lucida.. 809 



Stenglein, M. — Instantaneous Photomicrography 811 



Errera, L. — Photographing moving Microscopic Objects .. 812 



Fischer — Photographing phosphorescent bacilli by means of their own light .. .. 813 



(5) Microscopical Optics and Manipulation. 



Fasoldt, C. — Variation in Micrometric Measurements due to dif}'trent illumination 814 



IiEiNHERTZ — Testing Screw-Micrometers of Beading-Mi roscopes 814 



Smith, T. F. — Arachnoidiscus as a new Test for Uigh-power Objectives 815 



Nelson, E. M. — Tests for Modern Objectives 816 



¥ asoldt's (C.) Test-plates 817 



TilicnoscoriCAL Optics and the Quehett CJlub Journal 817 



(6) Miscellaneous. 



QuiNN, E. p. — Simple method of Projecting upon the screen Microscopic Bock 



Sections, both by ordinary and by jjolarized light 819 



SvD\>, i . Vi .—Microscopy and the Study of Bodes 820 



HoizEAC, J. C. — Microscope and Telescope 820 



/3. Technique. 



(1) Collecting Objects, includingr Culture Processes. 



BiRCH-HiKSCHFELD — Cultivation of Schizomycetts in Coloured Nutritive Media .. 823 



Frankel, C. — Cultivation of Anaerobic Micro-organisms 824 



Globig — Bacterial Growth between 5{f and KP C. 824 



