The American Natural 
Dendraspididaj, 869. 
Dendrobatidie, 862. 
Dendrophryniscidte. 862. 
D'Entrecasteaux Islands, 807. 
Diploria, 946. 
Diplotrypa, 1083. 
Dipnoi, 853, 854. 
Dip of Strata Changing, 629. 
Diprotodontia, 876. 
Dipteridae, 854. 
Desmognathifi, 871, 862. 
Development and First Traces of the 
Anterior Roots of the Spinal 
Nerves in Selachians, Mar. 172. 
Development of California Food Fishes 
Eigenmann, Mar. 107. 
Development of the Theories of Crystal 
Diamond, 814. 
Dibelodon, 19 
tajasm, Feb. 146. 
Dicrocerus, Mar. 125, 127. 
Dicynodontidae, 866. 
Didelphia, 874. 
Didelphidte, 876. 
Didelphys marsupialis, 129. 
aurita, Feb. 129. 
azarse, Feb. 129. 
Didida?, 873. 
DidemnidiB, 851. 
DiflFerentiator for Microscopy, 745. 
Difficulties of the Deutch Ostrafrikan- 
ische Gesellschaft, 433. 
Dikellocepbalus, 1087. 
Dinichthyidse, 856. 
Diprotodontidje, 876. 
Dirochelys reticularia, 1099. 
Discinisca, 983. 
Discocephali, 859, 860. 
Discovery of the Ancient Course of the 
St. Lawrence River, 491. 
of the Outlet of Huron-Michigan- 
Superior Lake into Lake Ontario 
- the Trent Valley, 493. 
Discoglos - -^^^ 
955. 
lidfB, 862. 
Diseases, Classificati 
Distegi, 860. 
Distribution of Corals, 732. 
Distribution of Kansas Fungi, 2 
Ditrema Jacksoni, Mar. 108. 
Divergent Evolution, Rev. J. 
Dr. Drasch, Prof, of Histology, lllO. 
Dr. G. F. Gade, Demonstrator of Micro- 
scopy, 1110. 
Dr. G. Huge, Prof, of Anatomy at Am- 
sterdam, 88. 
DromadidiE, 872. 
Dromieida?, 870. 
Dromajognathse, 870. 
DromiBopappi, 869. 
Dromatheriidfe, 874. 
Ductus Endolymphaticus, 69. 
Dumble, State Geologist of Texas, 89. 
Duplicidentata, 876. 
Dumortierite, 261. 
Dynamical Metamorphism, 720. 
Dyscophida;, 862. 
Dysganus, 904. 
PARTH WORMS, 733. 
