232 Scknlific Intelligence. [March, 



enabled to make the purchace during the revolution. He con- 

 siders their situation, their information and even their morals, as 

 greatly improved since the revolution. Prices in France are about 

 one hcjlf of what they are in England, 



III. Dr. Cross's Opiniom respecting the Cerebellum, &c, 



(To Dr. Thomson.) 

 MY DEAR SIR, 



In the last number of your Annnls I observed a paper On the 

 Use of the Cerebellum, &c. containing some supposed new obser- 

 vations on the structure of the spinal mass of nerves, and on the 

 function of its parts. Although 1 have no wish to detract from the 

 originality of Dr. Cross's statements, yet I feel myself bound in 

 justice to inform you that the same facts, or facts that lead to 

 similar conclusions, are published in the following works : — 

 Lettres de Hufeland a Portal, I8O7. Anatomic du bysteme Ner- 

 veux en general, &c. par Gall et Spurzheim. 



By inserting a notice of the contents of this note, you will much 

 oblige, your obedient servant, 



British Museum, Feb. '6, 1815. W. E. LeACH. 



IV. Ori the Petrifactions in Plymouth Lime-stone. 



(To Dr. Thomson.) 

 JWY DEAR SIR, 



In the last number of your Journal, p. 150, Mr. Hannah is said 

 to have discovered madrepores and shells in the lime-stone of Ply- 

 rpouth. I am induced, for two reasons, to trouble you with a very 

 few lines on the subject. In the first place, madreporites were first 

 pbeerved in the Plymouth lime-stone about eight years ago (and a 

 notice of this circumstance is given in vol. ii. p. 465, of Annals of 

 Philosophy) ; but it is to Dr. Lockyer, of Plymouth, that we are 

 indebted for the discovery of the exact bed in the lime-stone of that 

 district in which the madreporites are found. The same Gentleman 

 (Dr. Lockyer) also first observed turbinated univalves in loose 

 blocks of lime-stone imbedded in earth on Stonehouse Hill, but 

 shells have no where been observed in the lime-stone of Plymouth 

 in situ. In the second place, the Rev. Mr. Hannah some time 

 since showed me a specimen of lime-stone of a fine blood-red 

 colour full of madreporites : at the same time he informed me that 

 he found it at a place called the Devil's Point, Stonehouse ; and 

 as I had never observed this variety of rock near Plymouth, I lost 

 no time in examinipg the point on the same day ; and as the tide 

 was out, and the place not very extensive, I may with confidence 

 assert that no bed or vein of lime-stone similar to that shown me by 

 Mr. Hannah occurs at or near the Devil's Point ; but as vessels 

 pften throw out ballast near that spot, I have no doubt that the 

 fragments he found came there in that manner. 



I should feel it necessary to apologize for troubling you, but for 



