Vol. 70.] AXD ASSOCIATED MAMMALIA.X BEMAIffS. 93 



Plate XV. 



Fig. 1. Eoanthropus dawsoni A. S. Woodward: nasal bones in front view 

 (1 a), left side view (1 b), with left nasal from within (1 c) and right 

 nasal from within (1 d). Natural size. c. = inner crest; n. — groove 

 for nasal nerve. (See p. 86.) 



2. Do. : right lower canine tooth in outer or labial view«(2 a), inner or 



lingual view (2 b). anterior or median -interstitial view (2 c), posterior 

 or lateral-interstitial view (2d), and outline transverse section of 

 neck (2 e). Natural size. (See pp. 87-89.) 



3. Do. : radiograph of the right lower canine tooth from without (3 a) and 



in side view (3 b). Natural size. (See p. 88.) 



4. Do. : right mandibular ramus with canine tooth, outer view. Two- 



thirds of the natural size. 



5. Do. : impression of cavity for roots of lower molar 3 ; outer (5 a) and 



anterior (5 b) views, with crown in restored outline. Natural size. 



6. Homo sapiens Linn. : right lower milk-canine in outer or labial view 



(6 a), inner or lingual view (6 b), anterior or median-interstitial view 

 (6 c), posterior or lateral-interstitial view (6 d), and outline transverse 

 section of neck (6 e). Twice the natural size. (See p. 91.) 



7. Do. : right lower milk-canine and milk-incisors, outer antero-lateral 

 , view. Three-halves of the natural size. (See p. 91.) 



8. Simia satyrus Linn. : right lower milk-canine in outer or labial view 



(8 a), inner or lingual view (8 b), anterior or median-interstitial view 

 (8 c), posterior or lateral-interstitial view (8 d), and outline transverse 

 section of neck (8e). Four-thirds of the natural size. (See p. 91.) 



Appendix. — On the Exact Detebmixatiox of the Mediax 

 Plaxe of the Piltdowx Skull. By Prof. Gr. Elliot 

 Smith, M.A., M.D., V.P.R.S. 



At the meeting of the Geological Society which was held on 

 December 18th, 1912, I gave my first impressions of the cranial 

 cast which Dr. Smith Woodward had sent me three days before 

 the meeting. 



On the present occasion it is not my intention to say anything 

 further in reference to the brain of Eoanthropus (because I 

 am preparing a full report upon it for presentation to the Royal 

 Society l ) ; but, as there has been considerable criticism of the 

 restoration of the brain -case, I should like to take this oppor- 

 tunity of expressing my opinion that none of the criticism has 

 affected the accuracy of the preliminary note upon the cranial 

 cast which I communicated to this Society in December 1912. 2 



As the correct restoration of the cranium was the necessary 

 preliminary to any detailed study of the form of the brain,. 

 Dr. Smith Woodward kindly permitted me to examine the frag- 

 ments of the skull, and make an independent investigation with 

 the view of determining what positions they originally occupied 

 in the skull. This examination revealed a multitude of structural 

 features which indicate precisely the true position and orientation 

 of each of the fragments ; and there is now no doubt that the 



1 [Communicated to the Royal Society at the meeting on February 19th. 

 1914.] 



- Q. J.G.S. vol. lxix (1913) pp. 145-47. 



