( 6 ) 



MICKOSCOPY. 



a. Instruments, Accessories, &c. 



(1) Stands. page 



TKCim's (M..) Multiocular Microscope (Figa. 201-205) .. 796 



Ahbens's (C. D.) jTnocitZar Mcroscqpe (Figs. 206 and 207) 799 



CvLOOKSKAiUK's (E. M.) Bacteriological Microscope (Fig. 208) 801 



Stephenson's (J. W.) Erecting Binocular Microscope (Figs. 209 and 210) ,. .. 802 



Gomont's " new " Botanizing Microscope 803 



"RocBESTEB Magic Lantern and Projection Microscope (Fig. 211) 804 



Schott's M'croscopes (Figs. 212 and 213) 804 



Liebekkuhn's Microacope (Fig. 214) 806 



Weinzieel's Simple Microscope for the Examination of Seeds (Fig. 215) .. ,. 806 



YoGEh' 8 (H. C.) Lens-stand for Entomological purposes (Wig. 216) 807 



Westien's (H,) improved Universal Clamp for Lens-holders, &c. (Fig. 217) .. .. 807 



^y^\^& Lever and Parallel-spring Fine-adjustment (^ig. 21%) 808 



(S) Eye-pieces and Objectives. 



(3) Illuminating: and other Apparattis. 



Bausch & Lome Co«<Ze7i8er aTid! /Sw&stogie (Fig. 219) 809 



Keicheet's improved Mechanical Stage (Fig. 220) 809 



Boeden's (W. C.) Electrical Constant-temperature Apparatus (Figs. 221 and 222) 810 



Lighton's (W.) Analysing Diaphragm for the Polariscope (Figs. 223 and 224) .. 812 



Avsn's Incandescent Gas-burner in a Microscope Lamp .. , 813 



Maktinotti, Gr. — "OZd and New Microscopical Instrumented' — Apparatus for 



testing Refractive Index (Fig. 225) .. 814 



(4) Photomicrography. 



Orookshank's (Ft. M.) Reversible Photo-micrographic Apparatus (Fig. 226) .. .. 819 



Bafter's (G.W.)" Professional Photo-Micro-Camera (Figa.227-22y) 822 



Hartihack'b (E.) Cupro-ammonia Cell 826 



(5) Microscopical Optics and ManipvQation. 



Limit of Visibility .. . . . . .^ 827 



Heath's (K. S.) ' Geometrical Optics.' — Measure of the Aperture of the Microscope 828 



M'Kendbick, J. G. — Binocular Vision with the Microscope 829 



(6) Miscellaneous. 



"Roy kh Microscopical Society of the Sandwich Islands 830 



CvviOsmiES of Microscopical Literature 830 



j8. Technique. 

 (1) Collectingr Objects, including' Culture Processes. 



ScHENK — Solid Medium for the Culture of Micro-organisms .. .. 832 



Unna, P. G. — New liind of solid Blood- serum — Blood-serum Plates 832 



QAUB.il, G.— Preserving cultivations made by Koch's plate method 832 



Esmaech, B. — Modification of Koch's plate method for the isolation and quantitative 



determination of Micro-organisms .. 832 



Spina, A. — Bacteriological experiments with coloured nutrient media .. .. ,, 833 



(2) Preparing" Objects. 



ScHULTZE, F. E. — Methods for hilling Invertebrata .. 834 



Hebtwig, O. & R. — Influence of reagents on the Fertilization and Segmentation of 



the Animal Ovum 835 



DoGiEL, A. — Preparing Tendon-cells and Cells of the loose Subcutaneous Tissue .. 837 



BovEBi, T.— Preparing Medullated Nerve-fibres 838 



KoLLiKEE, A. — Demonstrating Sharpey's Fibres 838 



BijASChko, A.— Physiological Silvering of Elastic Tissue 839 



ScHiEFFEBDECKEE, P. — Preparation of the Retina 839 



Benda, 0. — Preparing the Mammalian Testis .. .. 839 



ScHWALBE, G. — Preparing Cochlea of Guinea-pig 840 



Rawitz, B, — Preparing the Central Nervous System of Acephala 840 



