Geometrical attenuation factors for gamma radiation from cylindrical and spherical surface sources /

Issued September 15, 1963.

The philosophy of arithmetic as developed from the three fundamental processes of synthesis, analysis and comparison, containing also a history of arithmetic.

Mode of access: Internet.

Synthesis of anthracene from naphthalene,

"Reprinted from the Journal of the American Chemical Society, vol. XLIII, no. 4, April, 1921."

Stair builders' guide; a treatise on the construction of straight flight, platform, cylindrical and eliptical [!] stairs, explaining the theory and practice so the average building mechanic may understand it, with examples of work ranging from the simplest to the most complex forms,

Mode of access: Internet.