X, 1815.
DUPONT, ADOLPHE, et BOUQUET DE LA GRYE: Les bois indigenes et etrangers.

Paris, 1875, pp.

273-352.
ESTRADA, ESTEBAN DUQUE: On the strength and other properties of Cuban woods.

Van Nostrand's Eng.Mag., Vol.

XXIX, 1883, pp.
417-426; 443-449.
EVERETT, W.H.: Memorandum on mechanical tests of some Indian timbers.Govt.Bul.No.6 (o.s.), Calcutta.
EXNER, WILHELM FRANZ: Die mechanische Technologie des Holzes.
Wien, 1871.