INDEX 577 



Degeneration method, 475 



tracts of ascending, 490 

 descending, 492 

 Delirium tremens (trembling delirium), 441 

 Delusions of the judgment, 440, 441, 443 



optical. 442, 44.3 

 Demilune cells, 238. 239 

 Dendrites of cells of Purkinje, 511 

 Dental (dens, tooth) pulp, 232 



tissues, 233 

 Dentine, 233 



Dermis (Sip/Jia. skin), 12, 190, 

 Dextrose (dexter . right-handed, from the direction of light polarised 



through it), 226 

 Diabetes, a form of, produced by injur.v to medulla oblongata, 520 

 Diaphragm (6ia, across ; i^pao-o-w, T separate bj' a fence), 9 

 action of, in respiration, 143, 144 

 connection of pericardium with, 42 

 of camera obscura, 406 

 Diastole (6i', apart ; o-reAAu, 1 place), 51, 52 

 Diet, mixed, economy of, 274 

 Differentiation of cells, 538, 551 

 Diffusion of lymph, 120 



Digastric (6i for 61?, twice : yao-Trjp, the belly), muscles, 306, 307 

 Digestion, artificial, 247, 260' 



fluid for, 2601 

 constant of, 563 

 purpose and means of, 224, 227 

 secondary, 215 

 Digits of hands and feet, 8 

 Dim bands of striated muscular fibre, 292 

 Direct pyramidal tract of spinal cord, 493, 515 

 Distance, judgment of, by the eye, 445 

 Division of labour in cells. 538 



nucleus of epidermic cells, 343 

 mammalian ovum, 537 

 Double hinge joint, 320 



vision, as result of squinting, 449 

 Drill, reflex nature of actions taught by, 527 

 Drinking, mechanism of, 236 

 Drum of the ear, 368 

 Duct, bile, 208, 213 

 hepatic, 209 

 lachrymal, 417 

 pancreatic, 221, 245 

 thoracic, 85 

 Ductless glands, 217 

 Duodenum (duodeni. twelve, from being twelve finger-breadths long, 251 



secretions flowing into the, 262 

 Dura mater, 453 

 Dyspnoea (6us, bad ; nvew, 1 breathe), 161, 162 



Eae described, 367 et seq. 



experiment on blood supply to, 67, 495 



" tightness " of, 389 



transmi.ssion of sound-waves to the inner, 379 



external, :i)68 



ELE. PHYS. p "p 



