Journal of Entomology and Zoology . al Co. 1 54 Sutter StreetSan Francisco, California Factories: Rochester, N. Y and Frankfort, a/M, Germany Use a PROJECTION LANTERN in your home. Our Model B Balopticon isplugged into an oidinaiy electric circuit, without special wiring. The Opaque Balop-ticons actually , .successfully, photos, pages of books, diagrams, without needinglantern slides. We are also the headquarters for Microscopes, Laboratory Apparatus, PrismField Glasses, Biological and Entomological Supplies and Engineering Instruments. Write for catalogs. New No. 65Spencer Microscope
Journal of Entomology and Zoology . al Co. 1 54 Sutter StreetSan Francisco, California Factories: Rochester, N. Y and Frankfort, a/M, Germany Use a PROJECTION LANTERN in your home. Our Model B Balopticon isplugged into an oidinaiy electric circuit, without special wiring. The Opaque Balop-ticons actually , .successfully, photos, pages of books, diagrams, without needinglantern slides. We are also the headquarters for Microscopes, Laboratory Apparatus, PrismField Glasses, Biological and Entomological Supplies and Engineering Instruments. Write for catalogs. New No. 65Spencer Microscope ADVANTAGES EXTRA LARGE STAGE, 112 x 108mm. ARM 75mm FROM OPTICAL AXIS. LOW COMPACT CONSTRUCTION. BLACK LACQUERED BODY TUBE. GENUINE VULCANITE COVERED STAGE. IRIS DIAPHRAGM OPERATED BY A KNURLEDRING EASY TO REACH. AUTOMATICALLY LUBRICATED FINE AD-JUSTMENT BEARINGS. NEW TYPE HANDLE ARM. SYMMETRY OF OUTLINE. BEAUTY OF FINISH. SUPERIOR OPTICS. IDEAL FOR LABORATORY WORKSend for Revised Price List for 1913 Spencer Lens Co. BUFFALO, N. Kin iS^R 16min and 4mni objectives11U. yJOU Double iiosepiece One eyepiece Cabinet tt^l QH Diseoiuit tosehooW POLOV CLASS WORK MATERIAL CAN BE PROCURED FROM C. S. BRIMLEY, Zoologist RALEIGH. N. C, U. S. A. Price List on Application Journal of Entomology and Zoology—Advertising Section Wards Natural ScienceEstablishment Founded 1862 Incorporated 1890 Natural Science Supplies Mineralogy: Prepared Collections; Blowpipe and Laboratory mater-ial; Museum specimens, etc. Geology: Fossils and Rocks in Collections; Laboratory material;Casts, Models, Charts, etc. Biology: Systematic Collections; Laboratory material for dissection;Museum specimens; Models, Charts, Microscope Slides, etc. Birds; Mammals; (skins, mounted skins and skeletons). Anatomical Models; Corals; Sponges; and other Invertebrates. Wehave the largest and most complete stock of any dealers in theworld. Catalogues and Price Lists in all departments sent free on request. Recent Publications:
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Keywords: ., bookcentury1900, bookdecade1910, bookidjournalofentomol191305cla
