The plain scale, a common mathematical instrument 17th–19th century England. Summary. edit. DescriptionPlain scale.jpg.
21 months ago

This series followed the earlier Weale's Rudimentary Series, which had been published first by John Weale from 1848 and later by Crosby, Lockwood and Son.
38 months ago

We need to downsize ISRM, and we are cataloging our library. One way for everyone to help us, is to adopt/buy our excess books. This book page is currently...
12 months ago

Page 15 - List of Contents. I. Historical Sketch of some of the means that have been adopted for the Supply of Water to Cities and Towns. — II.
116 months ago

Rev. Charles Baillie - Hamilton of Rumbletonlaw, second son of George Hamilton Baillie (No. 608), born 27th November 1764; died 19th June 1820.
79 months ago

Report on the Examination for Admission to the Staff College, held in July, 1864; with copies of the Examination Papers.
62 months ago

subjects. Architecture, Railroads, History, Details, Dictionaries, Early works to 1850, Navigation, Bridges, Description and travel, Domestic Architecture,...
134 months ago

This instrument may well be called a universal scale. By its aid all questions in proportion may be solved; lines may be divided either equally or unequally.
229 months ago

The broaching method for manufacturing the triangular holes in drawing instrument slip joints with screw fastener. This appears to be the most practical method.
221 months ago

These objects include "plain" dividers, which consist of just the legs, and "wing" or "bow" dividers, which have a crosspiece that may be...
69 months ago