158 Ediforial JYotices. [Jan., 



The older Fossiliferous Rocks of England. — From a recent 

 communication from Professor Sedgwick, we ai^e informed that 

 he never gave up the Cambrian system; and hence, still assigns 

 it a place among the sedimentary rocks of that country. The 

 following is a sketch of the divisions which he would make of 

 the protozoic formations. 1. The Cambrian Grovp. It rests 

 on the non-fossiliferous slates, and is of immense thickness; it 

 contains some peculiar species, but some of its species rise into 

 the succeeding division. 2. The Middle Grovp. It includes 

 Murchison's Lamdeilo and Caradoe rocks, and also the Wenlock 

 series. It therefore includes all the lower and a part of the upper 

 Silurian. 3. Upper Group. It embraces the Lower Ludlow, 

 Amestory Limestone, and Upper Ludlow rocks, including the Tile- 

 stone. 



To CURE Fresh Wounds in horses, cows or any other animal, 

 requires only a proper defence from flies. Hence all the receipts 

 for healing fresh cut wounds are useless. That such a wound 

 may heal well requires merely that its edges should be brought 

 together and maintained in contact. 



A NEW ARTICLE. — The Albany clay (tertiary), with certain 

 additions, is about to be employed in the manufacture of knife 

 handles. The article is extremely beautiful and resembles the 

 finest carnelian agates, and is susceptible of a beautiful polish. 



A NEW LOCALITY OF Pyroxene. — A fine locality of pyroxene has 

 been discovered in the town of Fine, in St. Lawrence county. The 

 crystals though not perfectly smooth are yet well formed, and 

 more than a yard in length. 



On the Agency of Caloric in permanently modifying the 

 STATE of aggregation OF THE MoLECULES OF BoDiES ; by Warren 

 De la Rue, Esq., Mem. Che.m. Soc. of London.— The principle 

 which is suggested by the fact that most, if not all, mineral bodies 

 undergo a change in the arrangement of their particles, even when 

 subjected to a moderate amount of heat, may be applied in ex- 

 planation of the mode in which originally soft deposites become 

 consolidated. An example given by the author, which was, when 

 precipitated, an exceeding light deposit, but on being subjected 



