NEW SPECIES O? OX. gQl 



tlood. At each Inspiration a new action is produced: and 

 the attraction of oxigen for iron needs no observation froru 



Your very obedient humble servant, 



Bristol, June l6th, 1806. P. 



ANNOTATION. 



THE supposition, that animal heat is kept up by a pro- J'''^"*?"** 

 (Cess analogous to combustion is by no means new : but it is 

 far from probable, that it should be by the combustion of 

 iron. If we consider the quantity of heat necessary to pre- 

 serve the warmth of so large a mass as the human body un- 

 /der certain circumstances, and requiring constant renovation, 

 where shall we find a sufficient supply of iron, to generate by 

 its combustion the heat actually produced in many cases? 

 /Or what becomes of this iron afterward ? Though iron ap- 

 pears to be pretty generally diffused, and to enter in small 

 portions into perhaps most animal and vegetable substances: 

 yet the ingesta, particularly in fevers, where much heat is 

 produced, and little nourishment taken, can scarcely atlbrd 

 enough to account for the heat, or for the oxigen consumed 

 in the air vitiated by respiration. And on the other hand 

 the proportion of oxide of iron in the blood will scarcely be 

 found answerable to the supposed effect. Facts however ara 

 always valuable ; and a series of well conducted experiments, 

 whatever they may tend to prove, or whatever Hypotheses 

 they may contradict, cannot fail to be interesting to the im- 

 partial inquirer. 



VUI. 



Description of a Species of Ox, named Gayal. Communis 

 cated by H. T. Colebrook, Esq*. 



T 



HE gayal was mentioned in an early volume of the re- Gayilhasbeen 



aeart'hes of the Asiatic Societyt, by its Indian name, which m'"tu'ned but 

 , - J i> J 'not described. 



* Abridged from the Asiatic Researches, vol. VIII. 



f In the second Tolume, Jp, 188,) publibhed in 1790. 



