[P]erhaps one of the most valuable results to be derived from a truly…

Complete knowledge of every theoretical and instrumental detail can only be obtained by those who will devote... a large portion of their lives; but sound knowledge of the principles... can be obtained by the reasonable efforts of persons …

[T]his Fifth Edition is required to meet the demand of a somewhat wider class of students than those for whom the Lectures were originally intended. ...Mr. Stirling has been at liberty to prepare the modifications and additions ...

[T]he instrumental conceptions derived from the use of a common globe are sufficient, in almost every case, for the understanding of the instruments in an Observatory...

[T]he methods used for measuring Astronomical distances are in some applications absolutely the same as the methods of ordinary -surveying, and are in other applications equivalent to them...

There is no question that education has been more generally diffused than it was in the middle ages, but it is doubtful if the number of thinkers has been increased, or real mental culture extended. Education loses in thoroughness and …

... the only way to become a connoisseur of honey is to keep s, for thus only may one learn to discriminate between honey made from and that gathered from ; or to distinguish, at first taste, the product of in bloom from that drawn from …