Orbits of the double stars, A B of [Epsilon] Hydrae and ? 883, by the graphical method.

Type-written ms.

Nuovo metodo per contrabbasso = Nouvelle méthode de contrebasse = New method for double-bass = Neue Kontrabass-Schule = Nuevo método para contrabajo /

Mode of access: Internet.

Preston's treatise on book-keeping: or, Arbitrary rules made plain: in two parts ... The first part being designed for the use of mechanics of all classes; the second ... showing the method of keeping accounts by double entry ...

Includes also his The Book-keeper's diploma; or a full and lucid treatise on the equation of payments, N.Y., 1937. Also Preston's estimates of boxes, and casks ...