( 4 ) 



Summary op Ctjerent Eesearohes, &c. — continued. page 



Chemical Properties of Bacillus suhtilis , , 933 



Supposed Identity of Hay-iaderia and those of Cattle-distemper .. .. 933 



Bacterioidomonas sporifera .. . . . . . . . . . . 934 



Bahenhorst's Cryptogamie Flora of Germany (Fungi) .. .... . . , . 935 



Woiihington Smith on Diseases of Field and Garden Crops .. .. .. 935 



Myxomycetes with Pseudo-plasmodia . . . . 935 



Relation of Lichens to the Atmosphere .. 936 



Algse of the Bed Sea 936 



Afghanistan Algse .. .. .. .. .. 936 



Gonjugatse .. .. .. .. .... .. 937 



Floating Bivulariese 937 



Sphacelaria .. .. .. 937 



'■'■ Sewage Fungus" 937 



Growth of the Thallus of Coleochsete scutata . . 937 



Influence of Gravitation on tJie Movements of Chlamydomonas^ and Euglena 938 



Chytridiacese . . . . . . . . . . 938 



Cookers Fresh-ioater Algse 939 



Alga in Solutions of Sulphate of Magnesia and of Lime .. .. .. .. 939 



Confusion hetioeen Species of Grammatoph&ra 93^ 



Depth at lohich Marine Diatoms can exist 939 



Diatoms of Franz- Josefs Land 940 



Structure of Diatoms from Jutland '^^ Cement- stone" ., 940 



Structure of the Diatom-Sliell . . .... . . 943 



Microscopy. 



Japanese Microscope (¥ig. 1^5) 953 



Schiecli^s Corneal Microscope (¥ig. li&) 954 



Zeiss'sNo.X. Microscope (Yig.Wl) ,. .. 954 



Wray^s Microscope Screen (¥ig. US) 956 



AIM s Micro-spectroscope (¥igs.\i^-l^l) 957 



Fngelma7in's Micro-spectral Objective (Fig. 152) .. .. 958 



MayalFs " Stepiped" Diagonal Bachworh (Figa. 15S and Idi) , 958 



Fasoldt's Nose-piece (Fig. 155) 959 



Spencer's Dust-protector for Objectives 959 



Sivift and Son's Goniometer Stage (Fig. 15G) .. .. 960 



Hartnach's Goniometer-stage (Fig. 157) .. 960 



Osborne's Diatomescope (Fig. 158) 961 



Wallich's Condenser (Fig. 15d) .. .. .. .. 962 



Cells for Minute Organisms 963 



Stolces' s Sparh Apparatus (Fig. 160) 964 



Bertrand's Polarizing Prism 965 



Electric Illumination for Anatomical, Microscopical, and Speetroscopical 



Wm-h 966 



Clayton and Attout-Tailfer's Isochromatic Plates for Photo-micrography ., 969 



Error in Photographing Blood-corpuscles 969 



The Tolles- Wenham Aperture Controversy ., 970 



Amphipleura pellucida resolved into "'Beads." Natvtre of the Striss of 



Diatoms 971 



Hardy's Collecting Bottle (Fig. 161) 977 



Collecting Desmids 977 



Preparing Embryos , 978 



Method of Studying the Amphibian Brain 978 



Preparing Planarians and their Eggs 978 



Starch Injection Mass 979 



Imbedding in Sticks of Paraffin 981 



"■Microtomy" 981 



Gray' s Ether Freezing Microtome 981 



Preparing Picrocarmine and Indigo Carmine 982 



Mercer's Solid Watch-glass (Fig. 162) .. .. 983 



Cheap method of making Absolute Alcohol 984 



Arranging Sections and Diatoms in Series 984 



Balsam of Tolu for Mounting . . 985 



Biniodide of Mercury and Iodide of Potassium and Phosphorus for 



Mounting 985 



Chapman's Slide Center er .. 986 



Indian Ink for examining Microscopic Organisms 986 



Apparatus for Aerating Aquaria 988 



Detection of Setuage Contamination by the use of the Microscope, and on the 



Purifying Action of minute Animals and Plants 988 



Examination of HandAOriting 991 



The Microscope in Palseontology 992 



Proceedings of the Society 995 



Index ,. .. .. .. .. , .. .. 1009 



