Numerical quadrature over a rectangular domain in two or more dimensions /

"This work was supported in part by the Office of Naval Research under Contract Nonr-1834(27)."

Tunneling, explosive compounds, and rock drills. Also, descriptions of the European and American systems, with tables giving the dimensions, cost, and leading data relating to the construction of about two thousand tunnels, compiled from notes furnished by engineers and railroad companies in North and South America, Europe, India, Australia and New Zealand, comprising a review of tunneling from the reign of Rameses II to the present time.

Mode of access: Internet.

Two geometrical memoirs on the general properties of cones of the second degree, and on the spherical conics /

Mode of access: Internet.