, and the third is the symbol for Venus

.

The following corrections have been made to the text:

Page iv: the page reference for CHAP. IX was changed from 258 to 256.

Page 26: Whose ridges with the meeting clouds contend."[quotation mark missing in original]

Page 27: As mountain snow melts with the mid-day sun."[quotation mark missing in original]

Page 36: "Of skilful painting, made for Priam's Troy,"[quotation mark missing in original]

Page 59: "W. H.,"[quotation mark missing in original] he continues