14 PETRIFACTIONS AND THEIR TEACHINGS. CHAP. I. 



tracted from the rock with great labour and care by Dr. 

 Deane of Greenfield. In the window recess on the right, 

 there is a slab with two imprints of a colossal biped, the 

 locality of which is unknown. l 



On the recess of the window between d and e, there is 

 a large slab with foot-tracks of a supposed reptilian quadruped 

 to which the name of Chirotherium has been provisionally 

 given, from the hand-like form of the imprints ; in Triassic 

 sandstone, from Storton quarries, near Liverpool. Presented 

 by J. Tomkinson, Esq. 



e. Two slabs placed upright in a case affixed to the wall, 

 with footmarks of a similar character. These are from the 

 triassic deposits at Hildburghausen in Saxony. 



f3F In the recess of the window, between c and d, there 

 is a fine mass of the mineral called Subsulphate of Alumina 

 or Websterite, from the Plastic clay at Castle Hill, near New- 

 haven, in Sussex. (Collected and presented by the author. 

 An account of the only known locality of this substance is 

 given in the " Fossils of the South Downs.") 



In the centre of the room, at the spot indicated by the 

 circle in the plan, on an elegant table inlaid with choice 

 marbles and minerals, there is a beautifully sculptured tortoise 

 in Nephrite or Jade. This curious specimen of Indian art 

 was found on the banks of the Jumna, near the city of 

 Allahabad in Hindostan, and brought to England by Lieut.- 

 General Kyd. Presented by Thomas Wilkinson, Esq. 



MINERALS. 



The mineralogical arrangement adopted by Mr. Konig is 

 that of Berzelius, founded upon the electro-chemical theory 

 and the doctrine of definite proportions. The detail of the 

 arrangement is indicated by the running titles on the out- 

 sides of the cases, and the labels attached to the specimens 

 within. 2 



The cases containing the minerals are numbered and 

 arranged in order, the first thirty in the Rooms I. to V. on 



1 These specimens were purchased for 60. 



" An electro-chemical arrangement, in accordance with the princi- 

 ples laid down by the great Swedish chemist himself not long before 

 his death, in a memoir on this subject, has been given by Prof. Ptam- 

 melsberg, in his ' J. J. Berzelius' Neues Mineral System, Nurnberg, 



