48 Correspondence — Ca2)f. J. Plant. 



placed in mj' hands an upper tooth, which I unquestionably pro- 

 nounced to bear a sti'onger resemblance to the E. primigenius, than 

 any I had before met with, and I went with him to the spot 

 whence the person, who sold it to Mr, Savin, took it. It was the 

 upper part of the Forest-bed series, and the matrix upon the tooth 

 coiresponded with it. 



It was a fine specimen with about 18 plates ; although it was 

 undoubtedly of E. primigenius form, still the width of the plates 

 reminded me of the pre-existent Leptodon type from which it appears 

 to be derived. 



Yesterday Mr. Savin favoured me with several photos of the 

 small teeth : some of which are from the same parts of the Forest- 

 bed, others from a lower part. All these Mr. Savin had been 

 advised to label E. primigenius. They are remarkably crimped. 

 Mr. Fitch has kindly given me an opportunity to compai'e them with 

 some specimens in his splendid collection obtained from the railway 

 cutting at Ipswich. These are also milk teeth, but no less remark- 

 able for the entire absence of crimping. 



Surely these, although labelled, and considered to be teeth of the 

 Mammoth, must be of a remote and intermediate type. What I 

 contend for is the existence of such intermediate links between the 

 forms recognized by Dr. Falconer as decided species. 



I am not surprised to find them pass from one into the other, as 

 exemplified by the recent discovery of this fine molar, which I take 

 the first occasion to announce through your valuable Journal. 



John Gunn. 



THE PIKRITE BOULDERS IN AJSTGLESEA. 



Sir, — I am sorry the famous boulder of this mineral has recently 

 disappeared from its place at Pen-y-carnisiog in Anglesea. The 

 natives tell me it has all gone to London. 1 have known this fine 

 sparkling boulder for several years, and never passed the spot 

 without bounding over the wall to give it a friendly tap with my 

 hammer, or have a smoke leaning against its polished sides; but 

 my knowledge never got further than to call it a strong hornblendic 

 "tumbler," i.e. Cymraeg for an "erratic" — of which there are other 

 examples yet unremoved. 



For the last ten years my holidays have been spent at a small 

 place on the S.W. coast of Anglesea. The time has been pleasantly 

 utilized with the aid of my wife in exploring and dredging for 

 molluscs (of which we have over 200 good species), and in mapping 

 down the geology of a broken coast, of which I have nearly measui-ed 

 every yard of 12 miles of the rocks. The complete section and 

 map is full of details, an explanation of which is almost completed ; 

 but the point which will have most interest to some will lie in the 

 fact that the Map will show more tlian one locality where the 

 mineral Pikrite is bedded in situ. 



EoYAL Museum, Peel Park, Capt. John Plant, F.G.S. 



Manchester. 



