Xvill FOOT-NOTES TO EVOLUTION. 
FIG. PAGE 
24. Section of mature Sacculina (after Lang). . ‘ . 281 
25. Sacculina attached (after Lang) 5 : 3 3 . 282 
26. Sacculina with limbs absorbed (after Lang) . 282 
27. Cretin of Aosta (after a photograph by Dr. J. W. Jenks) 285 
28. Cretin of Aosta (after Edward Whymper) ‘ . 286 
FULL-PAGE PLATES. FACING 
PLATE PAGE 
Some chipmunks of California, showing distinct spe- 
cies produced through isolation (after nature, by 
William Sacketon Atkinson) Frontispiece 
I.—Cephalopoda; development of Glyphioceras (after na- 
ture, by Mrs. Frances Rand Smith). 240 
II.—Development of Glyphioceras (after nature, = Frances 
Rand Smith) ij 242 
IlI.—Development of Schloenbachia (efter nature, by Pian 
ces Rand Smith) 246 
IV.—Development of septa in searmanties (after nature, iy 
Frances Rand Smith) ‘ ‘ 248 
V.—Forms of Ammonites (after nature, by Frances Rand 
Smith) ‘ 5 2 : . i y . 252 
