instantaneous processes,’ have been devised. of years. And yet there can be no doubt that such is fastened to the handle, w, so‘that it may be turned ata to be the case. Improvements, therefore, in quartz- greater or less angle, when it is place by the pins, y. The following is one that has never… … was procured (through the Scien- for a negative, and the following tific American_ Patent Agency) method is resorted to for.this ob- DU BOIS’S PATENT QUARTZ-CRUSHER. ject:--After it has been fixed and on June 26, 1860; and further well-washed, pour over the plate a saturated solution of dressing…
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