Notes and Comments. 
213 
have recently received, contains a note on ‘ Hesperopithecus, 
the First Anthropoid Primate found in America/ by Henry 
Fairfield Osborn, in which, quite rightly, the author states, 
‘ It is hard to believe that a single small water-worn tooth, 
10-5 mm. by 11 mm. in crown diameter, can signalize the 
arrival of the anthropoid Primates in North America in Pliocene 
time. We have been eagerly anticipating some discovery of 
this kind, but were hot prepared for such convincing evidence of 
the close faunal relationship between eastern Asia and western 
North America as is revealed by this diminutive specimen. The 
entire credit for the discovery belongs to Mr. Harold J. Cook, 
consulting geologist, of Agate, Nebraska, who has been con- 
tributing for many years to our knowledge of the extinct fauna 
of Nebraska through both his discoveries and his writings.’ 
RED CRAG FLINTS. 
In Man for June, Mr. S. Hazzledine Warren, has a paper 
on * The Red Crag Flints of Foxhall,’ in which he states, ‘ As 
a result of tedious and careful digging with small hand tools, 
I have seen the rostro-carinates, the Foxhall type of flakes 
with edge, trimming, pseudo-borers, pseudo-scrapers, spur 
implements, single notches, double notches, and many more, 
all in the actual process of manufacture by the movement- 
under-pressure of one stone against another. There have been 
difficulties and delays in the working of the Grays site, but I 
still hope to obtain a larger amount of material that will more 
adequately illustrate the whole series of pseudo-implements, 
their remarkable systematic grouping (so deceptively suggestive 
of human intelligence), and their range of variation. The 
series that I have already obtained is more than enough to be 
conclusive to myself; but then I have had the advantage 
(which is not shared by any one of my opponents) of the 
first-hand investigation of experimental movement-under- 
pressure, combined with first -hand, digging in the best sub-soil 
flaking site that is. yet known. I do not expect the opinions 
of others to be influenced by my own, but I look to the enthus- 
iasm and perseverance of my opponents to prove more and more 
specialised and advanced human industries in earlier and 
earlier geological formations, until the conclusion is forced upon 
them that there must be something wrong. I believe that in 
this way (and in this way only) they will come to realise for 
themselves that their standard of human workmanship is a 
false one, and will have to be reyised, not only with respect 
to the eoliths, but also with respect to some supposed im- 
plements of the admitted human period.’ 
THE YORKSHIRE FULMARS. 
We take the following letter, signed ‘ Naturalist,’ from 
the correspondence column of the Yorkshire Post of 30th 
1922 July 1 
