XXX11 
CONTENTS, 
PAGE 
Cobbett, L. — Influence of Filtration on Diphtheria Antitoxin 664 
Stolz, A. — Aberrant Groivth-forms in Streptococcus and Pneumococcus 664 
Mesnil, F. — Method of Action of Preventive Serum against Swine Erysipelas . . 664 
Tartakowsky, M. G. — Contagious Pneumonia of Guinea-pigs 665 
Sawtcenko, I. — Achalme’s Bacterium and Acute Rheumatism 665 
Petridis, A. P. — Dysentery and Abscess of the Liver 666 
Bertrand, G. — Action of the Sorbose Bacterium on Wood-sugar 666 
Zeidler, A. — Flagella of Termobacterium aceti 666 
Nicolle, C. — Bacteriology of Verruca 666 
Pane, N. — Capsule of Pneumococcus 666 
Simoni, A, de — Sporogenous Pseudodiphtheria Bacillus 667 
Whittle:?, D. — Micro-organisms of Rigg's Disease 667 
MICROSCOPY. 
A. Instruments, Accessories, &c. 
(1) Stands. 
Sir David Brewster’s Microscope (Fig. 1) 123 
Some Old Microscopes (Figs. 2-4) 124 
Field, W. E . — How to Make a Microscope Stand 126 
New Hartnack Microscope (Fig. 42) 347 
Brugnatelli’s Large Size Mineralogical and Petrological Microscope (Fig. 43) . . 348 
New Attachable Mechanical Stage (Fig. 44) 351 
Czapski, S., & W. Gebhardt — Greenough's Stereoscopic Microscope and its Auxiliary 
Appliances (Figs. 75-80) 469 
Two Old Microscopes exhibited by the President at the last Meeting (Figs. 81 and 82) 473 
Kraus, Rudolf — Electrically-Heated and Regulated Warm Stage (Figs. 83 and 84) 475 
Sticker, George — Travelling Microscope (Figs. 96 aud 97) 582 
Berger’s New Microscope (Figs. 98-100) 583 
Messter’s Bacteria Microscope (Fig. 101) 587 
„ Compressorium Microscope (Fig. 102) 587 
„ Preparation Microscope (Fig. 103) 588 
Large Binocular Microscope, designed and made by an Amateur (Fig. 113) .. .. 668 
“British Students’” Microscopes (Figs. 114 and 115) 671 
“ Fram ” Microscope (Fig. 116) 673 
Old French Microscope 674 
Microscope by John Cuff (Fig. 117) 675 
(2j Eye-pieces and Objectives. 
New Hartnack Homogeneous-Immersion Objective 351 
Schroeder, Hugo — Improved Huyghens Eye-piece 676 
Hartwig, H . — New Microscope Objective for Zoologiccd and other Biological Investi- 
gations under Water 677 
(3) Illuminating: and other Apparatus- 
Kowalski, A. — Repsold's New Self -Registering Micrometer 126 
Wadsworth, F. L. O. — Spider-IAnes (Fig. 29) 232 
Wicke, W . — Novelties in Polarisation Apparatus (Figs. 30-36) 233 
Zeiss’ Combined Horizontal and Vertical Camera (Figs. 45 aud 46) 359* 
Schaper, Alfred — New Apparatus for Application of Electric Currents to living 
Microscopic Objects (Figs. 104-108) 589 
“Newtonian ” Universal Science Lantern (Fig. 118) 678 
(4) Photomicrography. 
Pretzl, A. D . — Monochromatic Light for Photomicrography 127 
Gaylord, H. R. — Wink el’s New Photomicrographic Apparatus 354 
Spitta, Edmund J . — Photomicrography 591 
