41 



containing a frigorific mixture in water : by this means he has fre- 

 quently obtained a pellucid coating of ice on the outside of the vessels, 

 of considerable thickness, and, by adapting the form of the vessel, of 

 any figure that might be required. 



Account of a monstrous Lamb. In a Letter from Mr. Anthony Car- 

 lisle to the Right Honourable Sir Joseph Banks, Bart. K.B. P.R.S. 

 Read January 29, 1801. [Phil. Trans. 1801, p. 139.] 



The head of this animal, or rather foetus, for it was not born alive, 

 was disproportionately small, and had no resemblance to the natural 

 form except in the external ears, which were contiguous, and placed 

 on the front part of the head. Between them was an opening, which 

 proved to be the common passage to both the oesophagus and the 

 trachea. All the organs which are usually found on the face were 

 here wanting ; there being neither eyes, nose, nor any of the appa- 

 ratus belonging to the mouth : the cranium was formed into a hard 

 bone, bearing a near resemblance to the head of a tortoise, and about 

 the size of a plover's egg. 



On dissecting this singular production, it was found that the whole 

 cerebrum and all its nerves were wanting. It is hence inferred that 

 the formation and growth of animals in the uterus are independent 

 of any influence from those parts of the brain which properly belong 

 to sensation. The author regrets that this animal did not live to show 

 the phenomena of volition directed to its limbs and other parts, with- 

 out that intelligence from the organs of the senses which regulate 

 the actions of perfect animals. A careful observance of such circum- 

 stances, he thinks, might lead to discoveries of the greatest import- 

 ance in that part of physiology which is still enveloped in much ob- 

 scurity. 



An Anatomical Description of a male Rhinoceros. By Mr. H. Leigh 

 Thomas, Surgeon. Communicated by George Fordyce, M.D. F.R.S. 

 Read January 29, 1801. [Phil. Trans. 1801,^. 145.] 



An opportunity having lately offered of examining a living rhino- 

 ceros, and of dissecting it after death, Mr. Thomas availed himself 

 of the favourable incident ; and in this paper affords us all the in- 

 formation he could gather concerning that curious animal. 



Dr. James Parsons having, upwards of fifty years ago, laid before 

 the Society some account of the external parts of a rhinoceros, a re- 

 capitulation is here given of what is contained in that paper ; but on 

 the other hand, the description of the internal parts, and of some of 

 the organs, is the more ample, and, together with some observations 

 on its habits, will probably prove equally satisfactory to the anatomist 

 and the physiologist. 



Without entering into the technical part of this description, we 

 shall only notice here certain peculiarities concerning the eye, in 



