Use a PROJECTION LANTERN in your home. Our Model B Balopticon is plugged into an ordinary electric circuit, without special wiring. The Opaque Balopticons actually project, successfully, photos, pages of books, diagrams, without needing lantern slides.
We are also the headquarters for Microscopes, Laboratory Apparatus, Prism Field Glasses, Biological and Entomological Supplies and Engineering Instruments.
Write for catalogs.
| New No. 65 Spencer Microscope ADVANTAGES EXTRA LARGE STAGE, 112 × 108mm. ARM 75mm FROM OPTICAL AXIS. LOW COMPACT CONSTRUCTION. BLACK LACQUERED BODY TUBE. GENUINE VULCANITE COVERED STAGE. IRIS DIAPHRAGM OPERATED BY A KNURLED RING EASY TO REACH. AUTOMATICALLY LUBRICATED FINE ADJUSTMENT BEARINGS. NEW TYPE HANDLE ARM. SYMMETRY OF OUTLINE. BEAUTY OF FINISH. SUPERIOR OPTICS. IDEAL FOR LABORATORY WORK Send for Revised Price List for 1914 Spencer Lens Co. BUFFALO, N. Y. |
No. 65B 16mm and 4mm objectives Double nosepiece One eyepiece Cabinet Discount to schools $31.50 |
CLASS WORK MATERIAL
CAN BE PROCURED AT ANY TIME OF THE YEAR FROM
C. S. BRIMLEY, Zoologist
1135 Newberne Avenue