804 VOCABULARY. 



Capsule, the seed vessel of plants. 



Carnivorous, feeding or living on flesh. 



Carotid, the name of the arteries which pass up the neck on each side 

 of the windpipe, and convey the blood to the head. 



Cartilaginous, gristly ; formed from or consisting of gristle. 



Cellular, consisting of cells. 



Centripetal, having a tendency towards the centre. All bodies on the 

 surface, have a tendency to fall tow^J^rds the centre of the earth. 



Cetaceous, of the whale kind. 



Chrysalis, an insect in the second stage of its metamorphosis. 



Cicatrix, a scar. 



Comminuted, broken up into small pieces. 



Conatus, attempt, endeavour, effort. 



Condyles, prominences at the ends of some of the bones which are in- 

 tended to afford surfaces for the formation of joints. 



Congeries, a heap or pile of bodies accumulated together. 



Connate, produced or being born together \ having their origin at 

 the same time, and from the same cause. 



Convolution, the turning, rolling, or winding of any thing. The 

 convolutions of a snail's shell are the spiral windings of the tube in 

 which it exists around a central pillar or basis. 



Cornea, the transparent coat at the front part of the eye, through 

 which we see the pupil and the iris. 



Corolla. This term includes what are commonly called the leaves of 

 the flower, viz. the various coloured leaves which give their beau- 

 ty and fragrance to most flowers. 



Cretaceous, formed of, or consisting of chalk. It is applied not mere- 

 ly to substances consisting of chalk, commonly so called, but to a 

 variety of others which resemble it merely in having the same 

 chemical composition, such as the shells of shell-flsh, &c. 



Cubital, an anatomical term used to designate parts in, and relating to, 

 the cubit or fore-arm, which extends from the elbow to the hand. 



D. 



Deglutition, the act of swallowing. 



Diaphragm, a muscular membrane which is stretched completely 



across the cavity of the body like a curtain, and divides the chest 



from the belly, and by its contraction performs an important part in 



the act of respiration. 

 Dioptric, a term applied to that part of the science of optics which 



treats of the passage of light through, and its refraction by means of, 



transparent substances. 

 Dorsal, appei-taining to the back. 

 Ductus arteriosus, a duct or canal leading from the pulmonary arteries 



to the aorta, by which the blood is before birth conveyed from the 



pulmonary arteries to the aorta without passing through the lungs. 



It is closed after birth. 

 Duodenum, the first of the small intestines, being the next in order 



to the stomach, and receiving the food from it 



