Technology

DOUGLAS, HOWARD.

Stuttgart u. Tübingen, Cotta'schen Buchh., 1828.

TERMAN, FREDERICK EMMONS.

N.Y. a. London, McGraw-Hill, 1937.

CREHORE, ALBERT CUSHING and GEORGE OWEN SQUIER.

New York, John Wiley & Sons, 1897.

WOLTMAN, REINHARD.

Göttingen, Heinrich Dietrich, 1802.

ISHERWOOD, B.F.

Philadelphia, William Hamilton, 1863-65.

GREELY, A.W.

Washington, Government Printing Office, 1905.

KÜSTER, JULIUS

Bln., 1913.

MÜLLER, FRANTZ HENRICH.

(København, Seidelin, 1803).

MÜLLER, FRANTZ HENRICH.

(Kbhvn., 1801).

PONCELET, (JEAN VICTOR).

Braunschweig, G.C.E. Meyer, 1844.

HOFF, ARNE.

K., 1951.

KRUPP, ALFRED -

(Essen, Graphischen Anstalt Krupp), (1912).

HOFF, ARNE.

Kbhvn 1951.

PRZEWORSKI, STEFAN.

Leiden, Brill, 1939.

SCHMIDT, RUD.

Basel, B. Schwabe, 1875.

TORRES, M.L. (LEONARDO TORRES Y QUEVEDO).

Paris, 1901.

TELEPHONY -

Chicago, 1911-14.

THOMAS, H.

Paris, Baudry et Cie, 1894.