74 



Compass, Paget. A form of compass invented by George 

 ^ Augustus Paget, the main features being a light card with 

 short needles. 115.] 



Compass, Prismatic. A compass provided with a prism for 

 viewing the compass card and a distant object at the same 

 time. [2, 5, 9, 10, 13, 15, 16, 17, 18, 20, 21, 24, 25, 26, 27.] 



Compass, Projector Pattern. A ship's compass arranged for 

 projecting an image of the card to a convenient place, and 

 usually producing a magnified image. 



Compass, Spirit. A liquid compass (q.v.) in which the liquid is 

 a dense spirit. [13, 15, 16, 28.] 



Compass, Vertical Card. A ship's compass fitted with prism or 

 mirrors so arranged as to produce an image of the compass 

 card in a vertical plane. The prism, or mirrors, are some- 

 times designed to produce a magnified image. [13, 15, 21.] 



Compass-Card. The card of a compass on which the cardinal 

 points are indicated and degrees marked. It is usually 

 attached to the needle and is read with reference to an 

 index mark, called the lubber line. [13, 15, 16, 17, 21, 24, 

 27, 28.] 



Compass-Card, Coronet. A special form of light, short needle 

 compass-card, showing the divisions in a semi-vertical 

 position. [28.] 



Compass-Needle. The magnetised or polarised bar which, when 

 freely suspended or attached to a disc having a central cap 

 working on a pivot, assumes a magnetic North and South 

 position. [9, 13, 15, 16, 17, 18, 19, 21, 24, 25, 27, 28.] 



Compasses. A drawing instrument consisting essentially of 

 two limbs, rotating on the same axis, one terminating in a 

 point and the other in a pen or pencil, and used for 

 describing circles and arcs. [2, 5, 6, 9, 13, 15, 16, 17, 20, 

 21, 24, 25, 26, 27, 28.] 



Compasses, Bullet. Compasses with a bullet at the end of one 

 leg to set in a hole. [15, 21.] 



Compasses, Club. Of the same type as Bullet Compasses. 



Compasses, Cone. Of the same type as Bullet Compasses. 



Compasses, Elliptic. Compasses with attachment for drawing 

 ellipses. [2, 6, 13, 16, 17, 20, 21, 27.] 



Compasses, Pillar. Folding pocket compasses with a detachable 

 bow and pencil. [2, 5, 6, 13, 15, 16, 17, 21, 24, 27.] 



Compasses, Proportional. Compasses used in the enlargement 

 or reduction of plans. The instrument has two pairs of 

 points working on an adjustable centre, the distance between 

 one pair of points is always in the same proportion to that 

 between the other pair. [2, 5, 6, 13, 15, 16, 17, 20, 21, 24, 

 25, 26, 27.] 



