CONTENTS. 
XXIX 
PAGE 
Pfuhl, E . — Commensalism of Typhoid , Coli , and other Bacteria 525 
Klein, E . — New Pathogenic Microbe of Sewage 526 
Cantacuzene, J . — Spirillosis of Geese 526 
IIarrevelt, H. G. van — New Diplococcus isolated from Horse-flesh 526 
Dietrich, A. — Acid-resisting Bacilli in Pus 527 
Seitz, J . — Bacillus hastilis 527 
Teich, M . — Cultivation of Leprosy Bacillus 527 
Fischer, A . — Bacillus fsecalis alkaligenes 527 
Newman, G. — Newman's Bacteria 527 
Winkler, W . — Nature of Bacteria and their Position among Fungi 634 
Muller, F . — Reducing Properties of Bacteria 634 
Fischer & Bassengo — Ocean Bacteria 635 
Vignerat — Composition and Nature of Tuberculin 635 
Conn, H. W. — Variations in the Liquefying Power of Milk Bacteria 636 
Chemical and Bacteriological Examination of Water and Sewage 636 
Rideal, S . — Bacterial Purification of Sewage 637 
Emmerling, O . — Fermentation of Malic Acid by Bacteria 637 
Bill, A. F . — Movement of Bacilli in Liquid Suspension on Passage of a Constant 
Current 637 
Weiss, E . — Three New Lactic Acid Bacteria 637 
Morgenroth — Presence of Tubercle Bacilli in Margarin 638 
Emmerling, O . — Sorbose Bacterium 638 
^Etiology of Yellow Fever 639 
Mazza, C . — Bacteriology of Ford Epidemic in North Italy 639 
Stutzer, A., & R. Hartleb — Hyphomicrobium vulgare 639 
Galli- Valerio, B .— Morphology of Bacillus Mallei 640 
Bose & L. Galavielle — Micrococcus tetragenus 640 
Klein, E . — Bacillus pseudo-tuberculosis 640 
Pseudo-tuberculosis of Sheep 641 
Elmassian — Bacillus closely resembling Pfeiffer's Bacillus 641 
Vincent, H . — Bacillus fusiformis 641 
Kolkwitz, R . — Observations on Bacillus Ellenbachensis 642 
MICEOSCOPY. 
A. Instruments, Accessories, &c. 
Cl) Stands. 
Pillischer’s International Microscope (Fig. 1) 76 
Barnes’ Horizontal Microscope (Fig. 2) 76 
Improved Excelsior Microscope (Fig. 3) , 76 
Bausch & Lomb’s Educational Dissecting Microscope (Fig. 4) 79 
Improved Stage Construction (Figs. 5-7) 79 
Microscope with a New Mechanical Stage (Fig. 8) 80 
Bausch’s New Microscope Stand (Fig. 9) 81 
Nelson, E. M . — Evolution of the Microscope (Figs. 30-43) 202 
„ „ Powell’s Iron Microscope (Figs. 44 and 45) 209 
Martin Microscope (Fig. 46) 213 
Early Form of Ross Microscope (Fig. 47) 214 
Hartnack’s New Microscope for Flesh Inspection (Fig. 48) 216 
Reichert’s Mechanical Stages (Fig. 49) 216 
„ Cheap Stand (Fig. 50) 217 
Bausch & Lomb’s Folding Dissecting Microscope { Fig. 51) 217 
Paul Meyer’s Dissecting Stand ( Improved Form ) (Fig. 52) .. .. 218 
Bausch & Lomb’s New Complete Substage (Figs. 53 and 54) 219 
„ „ Revolving Mechanical Stage (Fig. 55) 222 
Two Old Microscopes (Figs. 72-74) 324 
Ross’s New Model Medical School and Educational Microscope (Figs. 75 and 76) .. 327 
Ross’s New Bacteriological Microscope (Fig. 77) 329 
Bausch & Lomb’s Continental ( Grand Model) Microscope (Fig. 78) 331 
