CONNECTING AND MISSING LINKS 



REFERENCES 



Darwin, Charles. The Origin of Species. 1859. 



Lull, R. S. Organic Evolution. Macmillan, 1920. The Ways of 

 Life. Harper, 1925. 



McCuRDY, G. G. Human Origins. Appleton, 1924. 



OsBORN, H. F. The Origin and Evolution of Life. Scribner's, 1917. 

 Men of the Old Stone Age. Scribner's, 1915. 



Scott, W. B. A History of Land Mammals in the Western Hemi- 

 sphere. Macmillan, 1913. 



Shimer, H. W. An Introduction to Earth History. Ginn & Co., 

 1925. 



Schuchert, Charles. Historical Geology. Wiley & Sons. 



ScHUCHERT, Charles, and Le Vene, C. M. Earth Rhythms. 

 Appleton, 1927. 



"The testimony yielded in the superficial layers of the earth and In the 

 caves, embracing hundreds of specimens of the fossilized remains of man, 

 more or less ancient, more or less complete, invariably, without a single 

 exception, testify to the gradual ascent of man from a lower to a higher 

 state, gradually dropping one primitive bit of anatomy after another until the 

 high, intelligent, fully human aspect is attained." — H. F. Osborn. 



"Determinate evolution is victorious all along the line. It only remains 

 for us either to accept the inevitable, or to take up a position as belated 

 outsiders, living in dreamland away from the practical realities of science, 

 rethinking the childish thoughts of primitive folk." — C. Lloyd Morgan. 



"The time has come when scientific truth must cease to be the property 

 of the few — when it must be woven into the common life of the world." 

 — Agassiz, 



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