Deserts, cause of high temperature of, [132]
Diagram of excentricity and precession, [129]
Diagram of excentricity for three million years, [171]
Dididæ, how exterminated, [436]
Didunculus, keeled sternum of, [437]
Diospyros, in upper greensand of Greenland, [186]
Diplotaxis muralis, on railway banks, [513]
Dipnoi, discontinuity of, [69]
Dipterus, [69]
Discontinuity among North American birds, [67]