Journal of bacteriology . COPE EXTENSION SCOOP DESIGNED BY W. C. COPE, Chemist U. S. Bureau of Mines MANUFACTURED BY SCIENTIFIC MATERIALS CO. PITTSBURGH, PA. Used for introducing solids into Kjeldahl or other long-necked flasks. The apparatus consists of an aluminumweighing scoop attached to an extension by means of abayonet joint. The weighing scoop is detachable and ofsuch a size that it can be placed on a balance pan. This permits the sample to be weighed and introduced into the flask•without transferring and without getting any of the material on flaskneck walls. Permits most accurate resu
Journal of bacteriology . COPE EXTENSION SCOOP DESIGNED BY W. C. COPE, Chemist U. S. Bureau of Mines MANUFACTURED BY SCIENTIFIC MATERIALS CO. PITTSBURGH, PA. Used for introducing solids into Kjeldahl or other long-necked flasks. The apparatus consists of an aluminumweighing scoop attached to an extension by means of abayonet joint. The weighing scoop is detachable and ofsuch a size that it can be placed on a balance pan. This permits the sample to be weighed and introduced into the flask•without transferring and without getting any of the material on flaskneck walls. Permits most accurate results in Kjeldahl determinationson food products, fertilizers and feed stuffs, also in thedetermination of nitrogen in explosives. Price, $ each. FRY RESISTANCE GLASS MADE BY H. C. FRY GLASS THE PITTSBURGH DISTRICT DISTRIBUTED BY SCIENTIFIC MATERIALS , PA. This is a real resistance glass as it resists the action ofboth alkalies and acids and also temperature changes andthe effects of shocks incident
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherbaltimorewilliamsw
