CONTENTS. XXXlll 



PAGE 



Browx, A. J. — Acetic Ferment which forms Cellulose Part 6 1034 



ScHNETZLER, J. B. — Microbe of Nitrification „ 1034 



Olivier, L. — Organisms of Sulphuretted Waters „ 1035 



DuGUET & J. Hericourt — Microsporon furfur, the pathogenic Microbe 



of Tuberculosis „ 1035 



Pfeiffer, A. — Typhus-bacillus „ 1035 



Fodor, J. VON — Bacteria in the Blood of Living Animals „ 1036 



NiJESCH, J. — Phosphorescent Bacterium „ 1036 



MICROSCOPY. 

 a. Instruments, Accessories, &c.* 

 Rogers, W. A. — Explanatory Notes on a Series of Slides presented to 



the Society, illustrating the Action of a Diamond in ruling lines 



upon Glass Part 1 16 



Stephenson, J. "W. — On " Central" Light in Resolution (Figs. 1-4) .. „ 37 



'Bvi^'LOcn's {^. H.) Zithological 3Iicroscope (^Fig. 5y „ 122 



CseyaIjI^b.'s (C) Portable Microscope (Figs. 6 and 7) „ 122 



KhBis's (C.) Horizontal Heating Microscope {Fig. 8) , 124 



'Fb.^'SCB. Dissecting Microscope (Fig . Q) „ 126 



Klonne & Muller's Pendulum Object-frame or Bacteria-finder (^Figs. 10 



and 11) „ 127 



Heurck, H. VAN — Microscopes at the Antwerp Exhibition „ 129 



'H.iTTisht^Y's (J.) Lens- and Slide-holder (Fig. 12) „ 129 



GiLiFFmi's (E. H.) Substage Diaphragm (Fig. Id) „ 130 



Sobby's (K. C.) Direct Tlluminator (Fig. li) 130 



Nelson, E. M. — Equalizing the Thickness of Slips with Oil-immersion 



Condensers (Figs. 15 and 16) „ 131 



CoxETER & Nehmer's SiUco-Carbon Battery and Electric Lamp (Figs. 



11 and 18) „ 131 



Bulloch's ("W. H.) Cobweb Micrometer „ 132 



3 vsq' s (B,.) Nose-piece Adapter (Figs. Id and 20) „ 132 



Hartnack's (E.) Fluid for Homogeneous Immersion „ 133 



Flint, J. M, — Eotary Object-carrier „ 133 



Karop (G. C.) & KuNCKEL d'HerctjLAIs' Compressor (Fig. 21).. .. „ 134 

 Martius' Method of Determining the Absolute Rate of Ciliary Vibration 



by the Stroboscope (Fig. 22) „ 135 



S, G. S. — Accessories for Microscopical Drawing (Fig. 2Z) „ 187 



'Dx^!rsiSG's,(Q>.Q.) Zoophyte-Cell (Figs. 2^-2&) „ 138 



'E.AfiDY's (J. D.) Examining Ta7ik for Pond-Life, 4'C. (Fig. 27) .. .. „ ]39 



"Bostm^ick's (A. 'E.) Absorption Cell , 110 



Verick's, Benecke's (B.), & Moitessier's (A.) Photo-micrographic 



Cameras (Figs. 28-32) „ HO 



Moitessier (A.), Benecke (B.), & Fol's (H.) Apparatus for taking 



Stereoscopic Photo-micrographs (Figs. 33-3Q) „ 143 



Walmsley, "W. H. — Objectives for Photo-micrography „ 115 



FKOTOGB&FB.Y and iMinute Details 140 



* This subdivision contains (1) Stands ; (2) Eye-pieces ami Objective^ ; 

 (3) Illuminating Apparatus; (4) Other Accessories; (5) Photo-niiciograpby ; 

 (6) Manipulation ; (7) Microscopical Optics, Books, and Miscellaneous matters. 

 Ser. 2.— Vol. VI. c 



