Scientific American; Supplement

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1899 edition. Excerpt: ...and the neat packages of special odors which are attractively labeled and advertised are much more salable. The pharinacist can, however, build up a demand for a. special odor of his own by adopting a special formula and pushing the merits of the odor selected, which inust bear adistinctive name. The formulas here given, says The American Druggist and Pharmaceutical Record, to which we are indebted, will appeal to the business pharmacist because of their practical form and the fact that the products yielded by them are relatively inexpensive. HOW CLAY PIPES ARE MADE. Tait clay froiu which the ordinary clay pipe is made is in its natural state of a slate color; it changes to white in firing, says The New York Sun. That used in pipe factories hereabouts comes iuainly from Woodbridge. N. J. As received it is in chunks, large and small, and in dust, something as soft coal comes, and its color is not unlike that of cement. The c_la.y is soaked in tubs for ten or twelve hours until it has been soaked into a mass, to prepare it for working. It is then put through a pug mill, in which it_is mixed to make it of a uniform consistency and to bring it to th_e right temper; it should be like a stifi' dough. As it comes from the ug_mill it is made up into balls or bunches about t e size of a peck measure. From the clay thus prepared for use without any admixture whatever the pipes are made. _ _ The first step in the process is the working of portions of the clay into _w at are called rolls. A bunch of the prepared clay is laced upon a bench and the rollinaker picks ofi' two uinps of clay which he in-Y5 Y11 a board in front of him on the bench. I-_Ie rolls but luinps at once, one under each hand, rolling theiie out into elongated...