185 



action has again ceased, and verdure has covered the oldest volcanoes, which form the picturesque crateriferous 

 hills which now surround me. 



" Obediently yours, 

 (Signed) " William Adeney." 



X The subjoined extract from the Correspondence on the renewed Exploration of the Wellington Valley 

 bone-breccia caverns, by the aid of the Grant voted by the Local Parliament of New South Wales in 1869, 

 relates chiefly to the discovery of Thylacoleonine remains : — 



" Australian Museum, Sydney, New South Wales, 

 October 30th, 1869. 



" Dear Professor Owen, — I received your letter of August 2nd, and would have replied to it before had I 

 not been absent at Wellington. I have been very successful, though I did not make any very great discovery. 

 I found plenty of Thylacoleo remains, in particular teeth, and forward photographs thereof. Besides these I 

 brought back remains of almost all our known genera, except perhaps Phascolarctos ; nor did I discover any Bats, 

 and no Hydromys. The photographs of the Thylacoleo-set of teeth will give you a good idea of the animal's 

 dentition ; they were all discovered together and by my own hands. It was probably a complete skull ; but the 

 soil was soapy, stiff, and the ground had been given up as no good ; when I went into it again, and after taking 

 a foot of clay off and finding nothing but limestone nodules which assumed (pardon the expression) the shape of 

 bones, I drove my pick slap into it with a will, and broke probably the skull into a hundred fragments. Here 

 is a photograph of what was rescued ; the two little upper premolars I did not find ; there are also two in the 

 lower jaw just behind the large third one. I mark their position — Plate II. Plate 3 gives you a view of the 

 last tubercular molar in the lower jaw. The canine of the upper jaw is of a good size but of very peculiar form, 

 so are the 2nd and 3rd incisors ; all the teeth are Thylacoleo^, and of all I have duplicates. 



(Signed) " Gerard Krefft." 



[The tooth here called ' canine ' is the anterior, first, or canine-shaped incisor. — R. 0.] 



Description op the Plates. 

 PLATE VII. 



Fig. 1. Portion of right upper jaw-bone (maxilla) and teeth, outer side view. 



Fig. 2. Portion of right upper jaw-bone (maxilla) and teeth, inner side view. 



Fig. 3. Portion of right upper jaw-bone (maxilla) and teeth, under view with working- 

 surface of teeth : the relative size and position of the tubercular is shown at 

 m i. 



Fig. 4. Portion of right upper jaw-bone (maxilla) and teeth, front view. 



Fig. 5. Portion of right upper jaw-bone (maxilla) and teeth, hind view. 



Fig. 6. Crown of a less worn upper laniary (i i), outer side ; from a breccia-cave. 



Fig. 7. Upper laniary (i i), front view ; from a breccia-cave. 



Fig. 8. Part of crown of upper laniary (i i), inner side view ; from a breccia-cave. 



Fig. 9. Second incisor (i 2), outer side ; from a breccia-cave. 



Fig. 10. Right upper canine (c), outer side ; from a breccia-cave. 



Fig. 11. Left upper canine (c), outer side; from a breccia-cave. 



