THE MICROSCOPICAL JOURNAL. 



Contents for November, 1,894. 



The Geranium Leaf as a Cell Aggregate, by Henry L. Osborn 325 



The Fruits of the Order Kanunculacese, by Karl M, Wiegand 332 



A Marking Apparatus for Indicating the Position of Objects or Parts 



of Objects in Microscopical Preparations, by S. H. Gage 337 



The Histological Structure of the Enteron of N. Maculatus, by B. F. 



Kingsbury 339 



Microscopical Technique Applied to Histology. — VIII .- 342 



Keys to the Genera of Pediculidse and Mallophagidse, by Herbert Osborn 344 



To Mount Certain Salts, by No Sig 346 



The Maltwood Finder and Similar Devices, by A. C. Stokes, M. D 349 



Editorial. — Sawing Rock Sections 35o 



The Ruby 350 



Microscopical Apparatus. — Substage Condenser 351 



A New Microscope for Observations at High Temperature 352 



Professor Gage's Marking Apparatus 353 



Microscopical Manipulation — Freeborn's Method of Collecting 353 



Material 353 



ATrausparent Cement 353 



To Prevent Vegetable Sections Turning Dark 354 



Bleaching Leaves 354 



Biological Notes. — Blood Measurements 354 



Medical Microscopy. — Hydrogen Dioxide 356 



Bacteriology. — A Co-Operatiye Bacteriologic Investigation 357 



The Diphtheria Bacillus 357 



Microscopical Notes. — Improper Use of the Microscope 357 



Necrology. — A. H. Breckenfleld 358 



Microscopical Societies. — San Francisco, Cal 358 



Personal.— Walter F. Webb 359 



H. C. Wells 359 



D. Bryce Scott 359 



New Public ^.TIONS. — Travaux d'Electrbtherapie Gynecologique 360 



Report on Typhoid Fever in the District of Columbia, Submitted 



by the Medical Society of the D. C. to Congress 360 



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