33 "PRIMAEVAL MAN IN THE VALLEY OF THE LEA." By WORTHINGTON G. SMITH, F.L.S., M.A.I., etc. My notes on this subject, published in the "Transactions of the Essex Field Club" for June, 1883 (vol. iii., p. 102), were tolerably complete to date, but the paper published in the "Journal of the Anthropological Institute" in 1884 (vol. xiii.) contained many new facts. The latter paper was, however, greatly hurried at the moment of publication, so that there was insufficient time to finish several of the illustrations. A few new facts have cropped up since 1884, and I have also engraved a few additional illustrative blocks. Under these circumstances, it has been thought well to bring the subject a little more up to date by the publication of the ad- ditional engravings and notes. The paper pub- lished in the Essex Naturalist for February last, p. 36, on Palaeolithic implements and flakes found very near the source of the Lea, at Wheathamp- stead, Harpenden, and Luton, may be taken as a kind of supplement to the subject as investigated near London. Replaced Flakes. To Mr. F. C. J. Spurrell, of Belvidere, a member of the Essex Field Club, belongs the honour of first replacing Palaeolithic flakes on to the blocks of flint from which they were originally struck. I shall never forget reading for the first time of this remarkable achievement. The replacement seemed thoroughly impossible, yet I knew it must be a fact, The reading of Mr. Spurrell's work is as deeply impressed on my mind as my first reading of the discoveries of M. Boucher de Perthes at Abbeville at the time when the great discussion was going on in 1858-9. I have not been able to equal Mr, Spurrell's grand restorations, although I have in four instances replaced Palaeolithic flakes. I know of no other persons who have been able to perform the feat