An Attempt Has Been Made In these Pages To Trace The Evolution Of
Intellectual Thought In the Progress Of Astronomical Discovery, And,
By Recognising the Different Points Of View Of The Different Ages, To
Give Due Credit Even To The Ancients. No One Can Expect, In a History
Of Astronomy Of Limited size, To Find A Treatise On "Practical" Or On
"Theoretical Astronomy," Nor A Complete "Descriptive Astronomy," And
Still Less A Book On "Speculative Astronomy." Something of Each Of
These Is Essential, However, For Tracing the Progress Of Thought And
Knowledge Which It Is The Object Of This History To Describe.
