OCR Text |
Show Valuable to Science. The telescope gives enlarged views of distant objects, the microscope shows only what is almost In contact with its lens, and by giving a means of making intermediate observations the modifications of the Davon micro-telescope micro-telescope have proven a boon to the naturalist. With great depth of focus and a large field of view, the short focus type, for example, has a working work-ing distance of 10 to 18 inches, and magnifies 15 to 38 diameters. An adjustable ad-justable rubber-tipped rod serves as a rest to support the Instrument at the desired height for studying such objects ob-jects as insects, plants and rocks. |