236 SCIENCE PROGRESS 



Boulder Clay as the Mindel section of his Giinz-Mindel Glacial 

 phase. Finally, in July Dr. L. S. Palmer adds a contribution 

 on " The Ice-Age and Man in Hampshire." His interpretation 

 is quite unlike that of any of the other writers. He places the 

 Chellean and Acheulean in the great Mindel-Riss interglacial 

 phase, but makes the Aurignacian post-Wiirmian in date. He 

 thus gets the whole of two glacial periods, and one interglacial 

 period interposing between the Acheulean and the Aurignacian, 

 a conclusion which is quite at variance with the continental 

 evidence. The reader will perceive that he may select almost 

 any opinion he may fancy. Penck's four-fold glacial scheme 

 appears to withstand criticism, but how far we are from reaching 

 finality in the English correlation is made apparent by the fact 

 that competent writers cannot at present agree whether our 

 great Chalky Boulder Clay is Mindel or Riss or Wiirm ! 



The contributions to recent numbers of the American Journal 

 of Physical Anthropology , which is edited by Dr. A. Hrdlicka, 

 continue to be of the highest scientific quality, though they 

 are almost always of a very special character, and do not deal 

 with general questions. This publication is coming to possess 

 much the same position in physical anthropology as the Journal 

 of the Royal Anthropological Institute has long held in social 

 anthropology, and articles by non-American writers commonly 

 appear in it. The " Notes " which it contains every quarter, 

 and likewise the book reviews, will also be found to be useful 

 sources of information. 



The following papers may be noted : 



In the Journal of the Royal Anthropological Institute, vol. li, pt. 2, July to 

 December, 192 1 : " The Archer's Bow in the Homeric Poems : an attempted 

 diagnosis," by Henry Balfour. (This was the Huxley Memorial Lecture iox 

 192 1.) " Animistic and other Spiritualistic Beliefs of the Bina Tribe, Western 

 Papua," by A. P. Lyons. In the Annals of Archcsology and Anthropology, 

 vol. viii, No. 2, April, 1921 : " The Roman Cemetery in the Infirmary Field, 

 Chester" (Part 2) by R. Newstead, F.R.S. And in recent numbers of Man : 

 " The CephaUc Index of the British Isles " by F. G. Parsons (February, 1922) ; 

 and " Levirate and Kingship in India," by K. P. Chattopadhyay (March). 

 And in the American Journal of Physical Anthropology, vol. iii. No. 4 (October 

 — December, 1920) : " Shovel-shaped Teeth," by Dr. A. Hrdlicka; and " The 

 Form of the Parotid Gland in Japanese," by O. Chikanosuke. 



MEDICINE. By R. M. Wilson, M.B., Ch.B. 



Sunlight and Rickets. — Medical interest at present centres to 

 a great extent on the study of rickets. This has undergone a 

 rapid evolution since the discovery of the accessory food 

 factors and notably of Vitamin A, the fat-soluble factor. 



But an entirely new light on the subject has recently come 

 through the labours of Dr. Harriette Chick and her co-workers 

 in Vienna. Dr. Chick, practising at the Vienna University 



