TO 



JOHN S. PHILLIPS, ESa. 



MEMBER OF THE ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA, &C.5 &C. 



My Dear Sir: — Having now completed a task which has cost me some years 

 of toil and anxiety, it gives me great pleasure to record the many obligations I 

 owe you in the prosecution of these inquiries. To your ingenuity I am almost 

 wholly indebted for the means of obtaining the elaborate measurements appended 

 to this work ; which, without your personal aid and untiring perseverance, would 

 have remained in a great measure unaccomplished. It may, perhaps, be thought 

 by some readers, that these details are unnecessarily minute, especially in the 

 Phrenological Table; and again, others would have preferred a work conducted 

 throughout on Phrenological principles. In this study I am yet a learner; and it 

 appeared to me the wiser plan to present the facts unbiassed by theory, and let the 

 reader draw his own conclusions. You and I have long admitted the fundamental 

 principles of Phrenology, viz: That the brain is the organ of the mind, and that 

 its different parts perform different functions : but we have been slow to acknow- 

 ledge the details of Cranioscopy as taught by Dr, Gall, and supported and extended 

 by subsequent observers. We have not, however, neglected this branch of inquiry, 

 but have endeavored to examine it in connection with numerous facts, which can 

 only be fully appreciated when they come to be compared with similar measure- 

 ments derived from the other races of men. Yet I am free to acknowledge that 

 there is a singular harmony between the mental character of the Indian, and his 

 cranial developments as explained by Phrenology. 



