Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 442
of Vs, the whole being parts of the same casting. On the endof the horizontal arm is a boss with a hole in it, through which ascrew passes freely. The bottom of the boss is turned out spheri-cally, and into it fits a spherical nut working on the screw. The nutis prevented from turning by a pin… … 4IO PREPARATION, MOUNTING, AND COLLECTION OF OBJECTS lower the end of the horizontal arm, and therefore to move backwardsor forwards the upper pair of Vs, and with them the lever andobject to be cut. The top of the screw is provided with a milled head,which may be used to adjust the object to the…
Microscopy
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![An illustration from Essai de physique, par Mr. Pierre van Musschenbroek ... avec une description de nouvelles sortes de machines pneumatiques, et un recueil d'expériences par Mr. J. v[an] M[usschenbroek] Traduit du hollandois par Mr. Pierre Massuet .. (1751)](https://img.insideoutlibrary.com/img/200/ia-essaidephysiquep02muss-489-81.webp)
