CONTENTS. 
XXX111 
(5) Microscopical Optics and Manipulation. page 
Mercer, A. Clifford — Aperture as a Factor in Microscopic Vision (Plates VII. 
to X. and Fig. 47) 354 
Nelson, E. M . — Microscopic Vision (Figs. 48-52) 362 
Zeiss’ New Comparison Spectroscope (Fig. 85) 477 
Wright, Lewis — Microscopic Images and Vision 592 
(6) Miscellaneous. 
Coplin, W. M. L . — Laboratory Dish (Figs. 37 and 38) 237 
Jaggar, T. A. — Micro-Sclerometer for Determining the Hardness of Minerals 
(Plates III. and IV.) 237 
Gebhardt, W. — Immersion-Oil Bottle (Fig. 39) 238 
Buscalioni, L. — Vessel for Treatment of Paraffin Sections with Staining and other 
Solutions (Figs. 53-57) 367 
Fence, E . — New Rapid Filter (Fig. 58) 368 
Cantani, A . — Injection Syringe for Bacteriological Work (Fig. 59) 369 
Abba, F . — New Autoclave (Fig. 60) 369 
Novy, F. G . — New Thermo-Regulator (Figs. 86 and 87) 478 
Murrill, P . — New Gas-Pressure Regulator (Figs. 88-90) 480 
Ward, H. B . — Paraffin Imbedding Table (Fig. 91) 481 
Jeffers, H. Vi.— Circular Colonometer (Fig. 92) 481 
Weiss, J . — Circular Colonometer (Fig. 93) 481 
Heurck, H. van — New Test-Plate 483 
Sturgis, W. C . — Improved Form of Wash-bottle (Fig. 94) 483 
Dippel’s (L.) The Microscope and its Application 484 
Cruz, G . — Simple Apparatus for Washing Microscopical Objects (Fig. 109) .. .. 595 
Stevens, W. C. — Apparatus for Fixing and Hardening Small Objects (Fig. 110) .. 596 
Moore, V. A. — Thermo-regulated Water-baths for the Bacteriological Laboratory 
(Figs. Ill and 112) 596 
Strehl, Karl — Abbe’s Theory of the Microscope 679 
B. Technique. 
(1) Collecting- Objects, including Culture Processes. 
Murray, G . — Plankton Gathering 128 
Heurck, H. van — Culture of Diatoms 128 
„ „ MiqueVs Cell for Pure Cultures of Diatoms (Figs. 5-7) .. .. 130 
Wassermann, A . — Cultivating Gonococcus 130 
Forster, J . — Nutrient Gelatin with High Melting-point 131 
Beck, M .— Capsule for Anaerobic Cultivation (Figs. 8 and 9) 131 
Cantani, A . — Seminal Fluid as a Nutritive Medium , , .. .. 131 
Deelemann, M . — Influence of the Reaction of the Medium on Bacterial Growth .. 131 
Cobbett, L . — Alkalised Serum as a Culture Medium for Diphtheria Bacilli .. .. 239 
Lunt, J . — Preserving Living Pure Cultivations of Water Bacteria 239 
Friedrich, P. L . — Actinomycetic Form of the Tubercle Bacillus . . 240 
Miller, C. O . — Aseptic Cultivation of Mycetozoa 371 
Jensen, O . — Peptonised Milk for the Cultivation of Lactic Acid Ferments . . . . 371 
Marpmann, G . — Method for making Anaerobic Roll-Cultures with Gelatin or Agar 484 
Morel, A . — Cultivation Media suitable for Tropical Climates 484 
Gabritschewsky, G . — Production of Plague Serum .. 485 
Pertz, Dorothea F. M . — Culture of Pleurococcus 485 
Pacinotti & Municchi — New Medium for Bacteriological Diagnosis 597 
Ferran, J . — Use of Acetylene in the Cultivation of Anaerobic Bacteria 598 
Burger, J . — Culture of Diatoms 598 
Roger, M . — Artichoke as Nutrient Medium 680 
C2) Preparing Objects. 
Novy, F. G . — Apparatus for Filtering Bacterial and other Fluids 132 
„ „ Simple Steam Steriliser 132 
Gardiner, W . — Detection of Protoplasmic Threads in Cell-Walls .. 240 
Tswett, M . — Use of Permanganate in Microtechnique 241 
1898 ‘ C 
