sstrain. measuring distances and their use; Instruments furset- U S. ENGINEER OFFICE, BOSTON, MASS., NO- Why don’t you get one? Re-designed and much improved, furnishes power to ting out right angles and their use; Survey of smaller * vember 21, 1892.-Sealed proposals tor dredging Write for… … plications. A valuable and interesting article by G. L. J. STEVENS ARMS & TOOLCO. . any pen, I00 copies can be made, 50 Have you a Thought Addenbrooke. Contained in SCIENTIFIC_AMERICAN P.O. Box 280, Chicopee Falls, Mass. =, copies of typewriter manuscripts produced SUPPLEMENT, No. 859. Price 10…
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