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Lautenschlager, F. & M. — Heating- Lamp with Electric Regulator for controlling 
the Gas-supply 40G 
Wilder, H. M . — Polarization icithout a Polarizer 406 
C4) Photomicrography. 
Comber, T . — Photomicrography 407 
Bibliography .. .. 411 
C5) Microscopical Optics and Manipulation. 
Stevens, W. Le Conte — Microscope Magnification (Figs. 49 and 50) 412 
/?. Technique. 
Bibliography 415 
Cl) Collecting Objects, including Culture Processes. 
Prausnitz, W . — Method for malting Permanent Cultivations 415 
Tischutkin, N . — Simplified Method for preparing Meat-Pepton-Agar 416 
Overbeek de Meyer, van — Preparing Nutrient Agar 416 
Protopopoff, N., & H. Hammer — Cultivating Actinomyces 416 
Prausnitz, W . — Apparatus for facilitating Inoculation from Koch’s Plates .. .. 417 
Gage, S. H . — Picric and Chromic Acid for the rapid Preparation of Tissues for 
Classes in Histology 417 
Prausnitz, N . — Apparatus for mahing Esmarch’s Rolls 419 
Kament, L . — New Cultivation Vessel 419 
Bibliography 419 
(2) Preparing Obj ects. 
Auerbach, L . — Demonstrating the Membrane of the Red Corpuscle of Batrachia .. 419 
Magini, G . — New Characteristics of Nerve-cells 420 
Cox, W. H . — Impregnation of the Central Nervous System with Mercurial 
Salts 420 
Smirnow, A . — Preparing Nervous Tissue of Amphibia 420 
Ballowitz, E . — Examining Spermatozoa of Insecta 421 
Mazzoni, V . — Demonstrating Structure and Termination of Muscular Nerves in 
(Edipoda fasciata 421 
Trouessart, E. L . — Mounting Acarina 421 
Morgan, T. H . — Preparing Eggs of Pycnogonids 421 
Mayer, P . — Preserving Caprellidse 422 
Cobb, N. A . — Mode of studying free Nematodes 422 
Koch, G. v . — Mode of examining Calcareous Bodies of Alcyonacea 422 
Noll, F. C . — Demonstrating Structure of Siliceous Sponges 422 
Dreyer, F . — Demonstrating the Structure of Rotten-stone 423 
Thomas, M. B. — Collodion-method in Botany 423 
(3) Cutting, including Imbedding and Microtomes. 
Bowler, W. W . — Imbedding and Sectioning Mature Seeds 423 
Aby, Frank S . — A Method of Imbedding Delicate Objects in Celloidin 424 
(4) Staining and Injecting. 
Vasale, G . — Modification of Weigert’s Method 424 
Mercier, A. — Upson’s Gold-staining Method for Axis-cylinders and Nerve-cells .. 425 
Wolters, M . — Three New Methods for Staining Medullary Sheath and Axis-cylinder 
of Nerves with Hsematoxylin 425 
Tirelli, V . — Staining Osseous Tissue by Golgi’s Method 426 
Oyarzun, A . — Impregnating Brain of Amphibia by Golgi’s Method 426 
Mercier, A . — Staining Medullary Sheath of Nerves of Spinal Cord and of 
Medulla 427 
Ciaccio, G. V . — Demonstrating Nerve-end Plates in Tendons of Vertebrata .. .. 427 
Brazzola, H . — Preparing and Staining Testicle 427 
(5) Mounting, including Slides, Preservative Fluids, &c- 
Vosseler, J . — Deterioration of Mayer’s Albumen- Glycerin Fixative 428 
Suchannek, H . — Hints for fixing Series of Sections to the Slide 428 
„ „ Preparation of Venetian Turpentine .. 429 
Vosseler’s (J.) Cement and Wax Supports 420 
(6) Miscellaneous. 
Amann — Use of Polarized Light in Observing Vegetable Tissues 429 
Proceedings of the Society 
430 
