( 4 ) 



Summary op Curbent Reseakohes, &c. — continued. 



PAGE 



Attenuation of Virus in Cultivations by Compressed Oxygen 599 



Babies.. , .. .- -• .. •• . •■ •• 600 



Bacteria in Canals and Bivers • 600 



Bacteria from Coloured Fishes' Eggs 601 



Bacteria connected genetically tcith Algx .. .. .. 601 



Action of Oxygen on Low Organisms . . . • • . 603 



Biology of the Myxomycetes .. .. .. 603 



Cephahdia of Lichens .. .. 604 



ThaUus of Leeanora hypnum . . • • 605 



Systematic Position of Ulvacese 605 



Newly-found Antheridia of Floridese 606 



New Unicellular Algse 606 



Structure of Biatoms ., .. 606 



Belgian Diatoms .. •• .. .. 606 



Diatomaceie from the Island of Socotra .. 607 



Microscopy. 



Microscope with Amplifiers (Fig. 89) . . 607 



Bausch's Binocular Microscope (Figs. 90 and 91) . . . . 607 



SohncMs Microscope for Observing Newton's Bings (Fig. 92) 609 



Harris and Son's Portable Microscope (Figa. 93 and di) 611 



Seibert's No. 8 Microscope (Fig. 95 ) 613 



Beicliert's Large Dissecting Microscope and Hand Magnifiers (Figs. 96 



and97) .. .. .. .. .. .. 613 



Geneva Company's Dissecting Microscope (Fig. 98) 614 



Drallim and Oliver's Microscope Knife (Fig. 99) .. 614 



Ward's Eye-shade (Fig. 100) 615 



Endomersion Objectives .. .. 616 



Selection of a Series of Objectives 620 



Correction- Adjustment for Homogeneous- Immersion Objectives .. ... ., 620 



Lighton' s Immersion Illuminator (Fig. 101) .. 621 



Illumination by Daylight and Artificial Light — Paraboloids and Lieberhiihns 621 



Bausch's New Condenser (Figs. 102 and 103) .. .. 623 



Glass Frog-plate (Fig. lOi) 623 



Groves and Cash's Frog-trough for Microscopical and Physiological 



Observations (Fig. 105) 624 



Visibility of Buled Lines 625 



Mercer's Photmnicrographic Camera (Fig. 106) .. .. 625 



Photographing Bacillus tuberculosis .. 627 



Beck's "■Complete'' Lamp (Fig. 107) .. 628 



James' ^ Aids to Practical Physiology' 629 



Postal Microscopical Society 630 



Methods of Investigating Animal Cells .. 633 



Bom's Method of Beconstructing Objects from Microscopic Sections .. .. 634 



Shrinking Back of Legs of Oribatidse in Mounting , . 635 



Preparing the Liver of the Crustacea 636 



Preparing Alcyonaria . . 636 



Semper' s Method of making Dried Preparations 637 



Method of Detecting the Continuity of Protoplasm in Vegetable Structures 637 



Method of Preparing Dry Microscopic Plants for the Microscope ■ .. •- 641 



Cliapman's Microtome 642 



Use of the Freezing Microtome 642 



Apparatus for Injection — Fearnley's Constant-Pressure Apparatus (Figs. 



108-18) 643 



Myrtillus for Staining Animal and Vegetable Tissues 652 



Hartzell's Method of Staining Bacillus' tuberculosis 652 



tSafranin Staining for Pathological Specimens 652 



Collodion as a Fixative for Sections . , . . , 654 



Piffard's Slides 655 



Mounting in Balsam in Cells 655 



Styrax,Liquidambar, Smith's and van Eeurck's Media 655 



Grouping Diatoms . . . . . . . . 656 



Quantitative Analysis of Minute Aerial Organisms 656 



Microscopical Evidence of the Antiquity of Articles of Stone 656 



Proceedings of the Society .. 660 



