File:Transactions (1871) (14760437986).jpg

Identifier: transactionsmining31amer (find matches)
Title: Transactions
Year: 1871 (1870s)
Authors: American Institute of Mining, Metallurgical, and Petroleum Engineers
Subjects: Mineral industries
Publisher: New York (etc.)
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
* a square with the arc of a quadrantmarked upon it, the whole face being divided with series ofparallel lines at right angles to one another, and apparentlyintended to represent the length of natural sines and cosinescorresponding to the angles marked upon it. Vertical angles * Elucidatio Fabricce Ususque Astrolabii Ioanne Stofterino lutlingensi (1553),p. 173. 7:M REMARKS ir\ sruvi:YiN<; instruments. seem to have been taken by means of two plain Bights, and a fineplumb-bob line marked the angle of elevation, as also the length Pig. o
Text Appearing After Image:
Determining by means of an Astrolabe the Depth to the Water at theBottom of a Pit or Well (1537), 1553. of the base and perpendicular corresponding to the angle.Stirrup very quaintly remarks: REM UIKS l PON 51 i:\ El IN. (NSTKI Ml NTS. vou tit Bights accordingly to the planisphere on the backside (ai 1 m■tended to have showed, had aot time called me away u they more font with thr Planisphere, the Horiaon w ill show upon the limb the quantity ofmv angle taken in the fleld, aa well u the Theodolite, Plain-table, r Peractor. Referring to the contents of his third 1 k and astronomical propositions, he Bays also: All o! which 1 very well know, may more easily be performed by the canon.i Bines, Tangents, and Logarithms, yet nothing so ipeedy as on the instrument ; Fig. 7

Note About Images