Both by the Chain aamp; All Instruments Now in Use. ... The Tables of Artificial Numbers, Sines and Tangents . ... And if you would find the Length of the Line CB , you may (by Cafe 3 of Right Aagt;g4e Triangle) thus, As the Sine of the Angle observedanbsp;...
|Title||:||The Young Surveyor's Guide: Or, A New Introduction to the Whole Art of Surveying Land|