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William Schmolz

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Stand Alone

A Key to the Solar Reflector
A Key to the Solar Reflector With a New Set of Practical Tables, &c. Useful in Surveying, Engineering, &c (Classic Reprint)
The Surveyor's and Engineer's Companion Being a Concise Treatise on Mathematical Instruments, Containing an Improved Method of Telescopic Measurements, Illustrated with Numerous Engravings (Classic Reprint)