00819cam a22002531a 4500 gs 29000132 DLC 20260227111333.0 720329s1929 dcu 000 0 eng gs 29000132 (OCoLC)272835 DLC ODaWU NmSoI DLC premarc QE75 .B9 no. 809 I 19.3:809 Birdseye, Claude Hale, 1878-1941. Formulas and tables for the construction of polyconic projections / compiled by C.H. Birdseye. Washington : U.S. Govt. Print. Off., 1929. 126 p. ; 24 cm. Geological Survey bulletin ; 809 Map projection. Surveys Plotting. Polyconic projections, Formulas and tables for the construction of. 26718 26718