. Scientific American Volume 86 Number 13 (March 1902). ,™ED Microscope for Projection. New metaltrack platewith keysto unlockstandardand changeinstantly —com b i ningalso polari-scope New seriesof projec-tion objec- fJat field, well lighted and clear definition. New sub-stage condenser on a new system. Illustrated circular,catalogue, etc., & CO., 1010 Chestnut , Pa. PALMER MARINE and STATIONARY MOTORS 2 and 4 CYCLE are no experiment, as theyare in successtul operationin all parts of the world. Launches in stock. Send for Catalogue,fALMER BROS., Cos C

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. Scientific American Volume 86 Number 13 (March 1902). ,™ED Microscope for Projection. New metaltrack platewith keysto unlockstandardand changeinstantly —com b i ningalso polari-scope New seriesof projec-tion objec- fJat field, well lighted and clear definition. New sub-stage condenser on a new system. Illustrated circular,catalogue, etc., & CO., 1010 Chestnut , Pa. PALMER MARINE and STATIONARY MOTORS 2 and 4 CYCLE are no experiment, as theyare in successtul operationin all parts of the world. Launches in stock. Send for Catalogue,fALMER BROS., Cos Cob, Conn.

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Keywords: ., boo, bookcentury1900, bookdecade1900, booksubjecttbe, bookyear1902