CAB 



CAC 



fcd with a plate of glass, to prevent the 

 admission of dust or air. This plate is 

 usually fitted into a frame of the same 

 size as the drawer, and is made either to 

 slide in a groove, or let in on a rabbet ; 

 the latter contrivance is much the best, 

 because, in sliding the grass along the 

 groove, if any of the pins happen to stand 

 so high as to touch the frame work, 

 the insects will be injured by the jerk, or, 

 as more frequently happens in this case, 

 be broken to pieces. On the contrary, 

 when the frame falls in upon a rabbet, it 

 is of no consequence whether the edge 

 of the frame sinks into the drawer below 

 the level of the heads of the pins on 

 which the insects are placed or not ; it is 

 only necessary to observe, that the glass 

 does not press upon the pins, since it is 

 the glass only that can come in contact 

 with them. 



CABLE, a thick, large, strong rope, 

 commonly of hemp, which serves to keep 

 a ship at anchor. 



There is no merchant ship, however 

 weak, but has, at least three cables ; 

 namely, the chief cable, or cable of the 

 sheet-anchor, a common cable, and a 

 smaller one. 



Cable is also said of ropes which serve 

 to raise heavy loads, by the help of cranes, 

 pullies, and other engines. The name of 

 cable is usually given to such as are, at 

 least three inches in diameter ; those 

 that are less are only called ropes of dif- 

 ferent names, according to their use. 



Every cable, of what thickness soever 

 it be, is composed of three strands, every 

 strand of three ropes, and every rope of 

 three twists ; the twist is made of more- 

 or less threads, according as the cable is 

 to be thicker or thinner. 



In the manufacture of cables, after the 

 ropes are made, they use sticks, which 

 they pass first between the ropes of which 

 they make the strands, and afterwards 

 between the strands of which they make 

 the cable, to the end that they may all 

 twist the better, and be more regularly 

 wound together; and also to prevent 

 them from twining or entangling, they 

 hang at the end of each strand and of each 

 rope a weight of lead or of stone. 



The number of threads each cable is 

 composed 'of is always proportioned to 

 its length and thickness ; and it is by this 

 number of threads that its weight and 

 value are ascertained ; thus, a cable of 

 three inches circumference, or one inch 

 diameter, ought to consist of forty-fight 

 ordinary threads, and weigh 192 pounds: 

 and on this foundation is calculated the 

 following table, very useful for all peo- 



VOL. III. 



pie engaged in marine commerce, who 

 fit out merchantmen for their own ac- 

 count, or freight them for the account of 

 others. 



A table of the number of threads and 

 weight of cables of different circumfer- 

 ences. 



Weight. 



. 192 pounds. 



. 308 



. 484 



. 696 



. 952 



. 1244 



. 1572 



. 1940 



. 2392 



. 2796 



. 3284 



. 3808 



. 4372 



. 4976 



. 5616 



. 6296 



. 7016 



. 7772 



CABLE, sheet anchor, is the greatest ca- 

 ble belonging to a ship. 



CABLE, to splice a, is to make two pieces 

 fast together, by working the several 

 threads of the rope, the one into the 

 other. 



CABLE, pay more, is to let more out of 

 the ship. Pay cheap the cable, is to hand 

 it out apace. Veer more cable, is to let 

 more out, &c. 



CABLED, in heraldry, a term applied 

 to a cross, formed of the two ends of a 

 ship's cable : sometimes also to a cross 

 covered over with rounds of rope, more 

 properly called a cross corded. 



CABOCHED, in heraldry, is when the 

 heads of beasts are borne without any 

 part of the neck full faced. 



CACALIA, in botany, a genus of the 

 Syngenesia Polygamia class and order. 

 Natural order of Composite Discoideae : 

 Corymbiferae, Jussieu. Essential charac- 

 ter : calyx cylindric, oblong, at the base 

 only subcalycled ; down capillary ; recep- 

 tacle naked. There are thirty-three 

 species, of which we shall only give a 

 short description of two or three. C. ca- 

 pillaris, or rough stalked cacalia, has the 

 foot stalk very strong and thick, and is 

 set round on every side, being destitute 

 of leaves, with three truncated foot 

 stalks, and thus is the stem defended iu 

 a singular manner from external injuries. 

 It is a native of the Cape of Good Hope, 



E 



