294 PETRIFACTIONS AND THEIR TEACHINGS. CHAP. III. 



distal extremity is thick and broad. This bone almost equals 

 the tibia in length ; the figure, Lign. 62, 1. is somewhat too 

 short in proportion to the corresponding tibia. 



Bones of the thigh and leg of Iguanodon, in Wall-case C 

 (ante, p. 227). The fragment of an enormous thigh-bone on 

 the uppermost shelf; this is the first specimen discovered, 

 and is figured in my "Fossils of Tilgate Forest," PL XVIII. 



Femur, tibia, fibula, and two metatarsals of a young 

 Iguanodon. These were found near each other, imbedded in 

 a block of sandstone, and evidently belonged to the same 

 individual. This is a most valuable series, because it affords 

 data for determining the relative length and size of the thigh, 

 leg, and foot. 



A fine shaft of a femur ; marked No. 4. 



Part of the femur, the tibia and fibula of the same indivi- 

 dual. These massive bones were exhumed from a bed of 

 clay, and were lying close to each other ; they are evidently 

 the bones of the same individual ; the femur is labelled 

 No. 2 ; it is on the right extremity of the shelf ; the tibia 

 and fibula are on the extreme left ; but by the aid of the 

 table (ante, p. 227), they may be readily identified. 



Femur, marked No. 3. This is a remarkably fine and 

 nearly perfect femur. 



The largest and most perfect femur of the Iguanodon in 

 the Museum (labelled No 1). It was dug up from the Weald 

 clay at Loxwood, to the west of Horsham, and with the 

 exception of the shaft, was broken into numerous pieces in 

 extracting it. The shaft is figured in Sir Roderick Mur- 

 chison's Memoir on Western Sussex ; the first contribution of 

 that distinguished geologist to the science he has so greatly 

 advanced by his genius and indomitable perseverance and 

 activity. It was many years in the state in%vliich it is there 

 represented ; but at length my warm and generous friend, 

 the late Earl of Egremont, obtained it for me, together with 

 all the fragments, and many other bones that were exhumed 

 at the same time by J. King, Esq. ; and I succeeded in re- 

 pairing the bone as it now appears. The form of the head, 

 condyles, and the two characteristic trochanters, are well 

 displayed. 



Femur, marked No. 5. This is a fine specimen, though 

 the condyloid end is crushed. It was from the ferruginous 

 sandstone of Cuckfield. 



