Cooke, Josiah Parsons, 1827-1894 · Boston, Little, Brown and Company · leaf 194
of the axesin the crystals of any given substanceis in a great measure arbitrary, and weassign such a position in every case aswill render the symbols of the observedforms of the substance as simple aspossible. Fig. 173 represents a crystalof sulphate of copper, and the symbolsbelow the figure… … il = a : cob : CO c.{ i£ = 00 a :cob 1 e. i — a : cob : c. 1 = a: b : c. 0 = ooa:b I <oc. relativeand the 170 CHEMICAL PHYSICS. angles of inclination are a == 82° 21, ^ = 77° 37, ; =73° 10. (93.) Irregularities of Crystals. — The crystalline forms,which we have studied in the last section, have…
Matter · Heat
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