Various Kentucky Geologic Quadrangle Maps (106 in total). All the maps have the original envelope. The included quad maps are marked with a green X on the map key. Most of the quad maps are located in central KY. All the maps appear to be in very good condition. Collectively - the weight of the quad maps is 27 pounds.
Offered here for purchase is an acceptable copy of
AN ESSAY TOWARDS A SYSTEM OF MINERALOGY (Volume 2 only of 2) by Axel Frederic Cronstedt. London: Charles Dilly 2nd ed, 1788. 8 1/4" X 5", pp 433-1040 with 2 folding plates; original calf. Somewhat edge worn and scuffed, binding firm with no loose pages. Not ex-library. This is volume 2 of one of the most important and influential works in mineralogy. By precise chemical analysis, Cronstedt first realized that every mineral is created from a specific set of chemical
constituents
; he further realized that the chemical
uniqueness
of minerals formed an ideal concept on which a system of mineralogy could be built.
Although
the title page states 2nd edition this is in reality the 3rd edition and final edition.
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