Note 1129 — Chapter VII · (continued 2)
Reading edition
Mr. Swainson (Study of Natural History, p. 356) says ‘mineralogy, indeed, which forms but a part of chemistry.’ This is deciding the question very rapidly; but in the meantime, what becomes of the geometrical laws of minerals? and what are we to do with that relation between their structure and optical phenomena, which Sir David Brewster has worked out with signal ability?