362 ALDERBURY. [l892. 



cepted at once, but I give reasons and facts for all that I advance, 

 and I believe that when dispassionately considered and without 

 the narrowing influence of uniformitarianism, but by investigation 

 of the phenomena on the spot, the solution I propose will be 

 found the one which best answers to all the conditions of the 

 case. I am glad that C. Eeid has found glacial striae on the 

 Pagham blocks. Mr Abbott told me he had also found them on 

 some of the smaller specimens at Brighton. I have shown in my 

 paper that they could not have come from the shores of France 

 or the Channel Islands, but probably from Norway or North 

 Germany. This would agree with and be confirmed by C. R's 

 observations. I suppose Geikie is off to the South. I wish I 

 could do the same, and trusting you are keeping well. . . . 



Dr H. P. Blackmore to J. Prestwich. SALISBURY, 20th April 1892. 



DEAR PROFESSOR PRESTWICH, I do not know if my thanks 

 are due to you or Mr de Barri Crawshay for a copy of your paper 

 on the character of the plateau implements of Kent. The paper, 

 as well as your previous ones in the Quart. Journ. Geol. Soc., 

 interested me much, and set me thinking over the Gravels of 

 this district: from, thinking I set to work hunting, and the 

 result has been far better than I expected. Besides the higher- 

 and lower-level valley Gravels, which have proved fairly prolific 

 in the ordinary types of palaeolithic implements, there are two 

 other sets of Gravel, the lower ranging about 300 feet above the 

 sea-level, and the other at from 400 to 500 feet. 



The first set, viz., the 300 feet, includes the Gravels at Alder- 

 bury, three miles to the south of Salisbury : these I had always 

 thought of Pliocene age ; but two years since, when visiting the 

 pits with Mr Jukes-Browne, I found a rough waste-flake in situ 

 which sadly puzzled me, as although only a flake, it to my mind 

 bore clear evidence of human workmanship ; but since reading 

 your papers and seeing the plateau types, the pits have again 

 been visited and hunted over with the result that plenty of 

 evidence of implements is there. When I say implements, the 

 word would perhaps give a wrong impression, as the specimens 

 found are rather natural or accidental forms of flint that have 

 been taken up, used a few times, and then thrown away but 



