1 66 TIMBER AND TIMBER TREES. [CHAP. 



Officers have, however, hesitated to employ it for beams 

 which are intended to carry heavy guns, lest it should 

 contain some hidden defect of the character just 

 mentioned. It is only sparingly used in works of civil 

 architecture, on account of its great specific gravity. 



TABLE LXXX. SABICU (CUBA). 

 Transverse Experiments. 



REMARKS. Nos. i, 4, 5, and 6 broke with about 10 to n inches fracture; 2 and 3 

 broke with 8 inches fracture. 



TABLE LXXXI. 

 Tensile Experiments. 



