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The Snyderian Theory on the Variations of the Magnetic Needle
The Snyderian Theory on the Variations of the Magnetic Needle
The Snyderian Theory on the Variations of the Magnetic Needle
The Snyderian Theory on the Variations of the Magnetic Needle
The Snyderian Theory on the Variations of the Magnetic Needle
The Snyderian Theory on the Variations of the Magnetic Needle
The Snyderian Theory on the Variations of the Magnetic Needle
The Snyderian Theory on the Variations of the Magnetic Needle
Snyder, Rev. Silas Allen

The Snyderian Theory on the Variations of the Magnetic Needle


First Edition. Lockport, NY: M. C. Richardson & Co., 1872.

....Showing The Extent And Causes Of Its Variations, Together with Principles and Rules by Which the Same May Be Corrected, and the True Pole Of the Earth Located at Any Required Time In the Year

Cloth 8vo, 79pp. Very Good with sunning to spine and rubbing to extremities, small loss of cloth (about 1/4") at the spine head. A handsome production printed in large type with generous margins, privately printed by M. C. Richardson & Co. after, the author claims, "being solicited often and urgently by numerous friends." Aesthetically and materially reflective of a recreational pursuit of science (fashionable among gentlemen of the era), rather than a serious contribution to scholarly dialogue--the introductory "Essay" written in rhyming couplets also supports this assessment.

Census records show that Snyder (1826-1874) was a farmer and a preacher in Clarendon, New York. He patented a "Metallic Chair Seat" in 1870 (reported in Scientific American), but no other mentions of him in print could be located. The text appears written for a student audience and includes comprehension "Problems" at the end.