Calvert, F. (Frederick) Crace', 1819-1873, Stenhouse, John, Groves, Charles Edward, 1841-1920 · Manchester : Palmer & Howe · leaf 381
e-sixths of the colouring principle that the standarddoes. This apparatus may be replaced by two burettes ofthe same diameter. The first improvement on this plan was to place the tubesin an oblong box, Fig. 12, a kind of camera obscura,having two holes inthe top, near one end,of a diameter equal… … 344 DYEJXG AXD CALICO PRIXTIXG. & V in the apparatus, and turning the slits to the light,the lower portion of the tubes can be seen. As no light fallson them, except through the slits, greater accuracy may beobtained than by the first method. M. Collardeau has proposed an instrument on a…
Dyes and dyeing · Calico-printing
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