CONTENTS. 
LEADING ARTICLES. 
Birds of New Guinea (Illustrated). GEORGE S. MEAD...... , 409, 627, 
Leuciscus Balteatus (Richardson) A Study in Variation E 
H 
On the Evolution of the Art of Working in Stone. J. D. McGut 
The rere: of Flower Seasons, and the Piiendlogical Keitas 
the Entomophilus Flora and a 4 cae seg Insect Fauna 
anaatcited. CHARLES ROBER 
Insanity in Royal Families, A Study in n Heredity, Foshan BODINGTON, 
The Significance of Anomalies. 
In the Region of the New Fossil, AE AA pee DA row. 
KENYON 
Sec e tere sosoo 
The Cold Spring Harbor Biological Laboratory (Illustrated). H. W. 
CONN 
Minor Time Divisions of the Ice Age. WARREN UPHAM 
The Skunk as a Source of Rabies. W. W 
The Classifi.ation of the Lepidoptera. 
nthe Presence of Fluorine as a Test for the PwasiieaGon of Animal 
Bon THOM WILSON 301, 439, 
ecclesia Evolution Among Plants. L. H. BAILEy....... aces Dane 
Observations on a so-called Petrified Man. J. M. STEDMAN 
On the Validity of the Genus Margaritana. C. T. Simpson 
The Hereditary Mechanism and the Search for the Unknown Factors 
of Evolution. H. F. OSBORN......... 
The Genera of Branchiostomidae. ‘THEODORE GILI 
Is Daemonelix a Burrow (Illustrated)? E. H. BARBOUR 
On Successive Protandri Syd sith Hermaphroditism in Ani- 
MONTGO Mj SE E E P E O suvens 
Sponges Recent and Fossil pren J. F. JAMES 
The Mouth-Parts of the Lepidoptera. V, L. KELLOGG .... ...eseceseseees 
The Symbiosis of Stock and Graft. E. F. SMITH... orcociessini vos 
On a Supposed Case of Parallelism in the Genus Palaeosyops ( Illustra- 
ted). CHARLES EARLE 
Ona oye zemp of the Lepidoptera ( epi A D 
63 
Inv estigntions Pokeria the Etiology of Small- Pok (Illustrated). J. 
The Aint of the Lepidopterous Wing (Illustrated). V. L. KEL- 
OGG 
Contributions to Coccidolegy. T. D. A. CocKERELI 
The Present SS ae of the Florida Manatee, 7 fenial latirostris 
Harlan, in the Indian River Waters. 
Deviation in T dué to Unripe Seeds. F C pearen .804, 
The Effect of Female Suffrage on Posterity. JAMES WIER, JR....... = 
1056 
10 
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