I made a slight error in the title of that book, but here is a link to the Amazon page where I bought my copy http://www.amazon.com/gp/product/1275608221/ref=oh_details_o00_s00_i00

Although it says 'in three volumes', volumes 2 and 3 were never published for some reason. The original 18th century typeface can be a little hard to decipher at times, but it's worth the effort if you are seriously into the subject.

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