Technology

ORMSBY, W.L.

New York, Ormsby, 1852.

WILHELM, JOHANN (+) BOCKLER, GEORG ANDREAS.

(Architectura civilis:) Nuremberg, Paul Fürst, (no year); (Theatrum Machinarum Novum:) Nuremberg, 1703.

ELLIS, WILLIAM.

London, Weaver Bickerton, 1732.

ADAMS, GEORGE.

Leipzig, Crusius, 1798 & 1799.

THORSTENSEN, SV.

Oslo, 1946.

SIDENBLADH, ELIS.

Sth., 1947.

SVENSKA JÄRNVÄGER.

Stockholm., 1868-(72).

MÜLLER, HEINRICH.

Berlin, Polytechnische Buchhandlung 1875.

SIEMENS, C. W.

Newcastle-Upon-Tyne, M. & M. W. Lambert, 1877.

(VARIOUS AUTHORS).

New York, American Telephone and Telegraph Company, 1979.

TELEPHONY -

Chicago, 1906-14.

DOWSETT, H.M.

London, The Gresham Publ. Comp., 1923-24.

WEYGAND, HERRMANN.

Laipzig, Buchhandlung für Militairwissenschaften, 1872.

OXHOLM, PETER LOTHARIUS.

Kiøbenhavn, Nicolaus Møller, 1777.

SMILES, SAMUEL.

London, John Murray, 1857.

BERGSØE, PAUL.

Copenhagen, 1938.

MORRISON, L. W.

New York, American Telephone and Telegraph Company, 1947.

PETERSON, E.

New York, American Telephone and Telegraph Company, 1946.