Netv Theory of the Cofijiitution of mixed Gafes elucidated. 169 



From the point of the tufks to the end of the 



tail, following the curve 

 Length in a (traight Hne - - - 



Width of the hips and hody 

 Length of the under jaw - _ - 



Weight of the fame - 6^1 pounds 



Width of the head _ _ » 



Length of the thioh-bone _ _ _ 



Smallelt circumference of the fame 

 Length of the tibia _ _ _ 



Length of the humerus, or large bone of the 



fore- leg _ _ _ _ 



Largell circumference of the fame 

 Smalleft ditto ditto _ _ _ 



Length of the radius _ „ _ 



Circun«ference round the elbow 

 Length of the fcapula, or flioulder-blade 

 Length of the longcft vertebra, or back-bone 

 Longefl rib, without cartilage 

 Length of the firft rib - - 



Ditto of the breaft-bone _ _ - 



Length of the tuflcs, defences, or horns 

 Circumference of one tooth or grinder 

 Weigiit of the fame, 4 pounds 10 ounces 

 The whole (keleton weighs about 1000 poimds. 



XXV n. Av'u; Theory of the Conjl'ituthn of mixed Gafes elu- 

 cidated. JBy J. Dalton, -E/'^'.* 



I 



N an efTav, pul)li(hed in the Memoirs of the Literary and 

 Philofophical Society of Manchefter, vol. v. part 2, I gave a. 

 new theory of the conftitution of mixed gafes, and particu-l 

 larly of the atmofphere, and endeavoured to illudratc myj 

 meaning by a plate, &c. Notwithftanding this, I am in-l 

 formed by fomc of my chemical friends that they do not 

 clearly nnderftand the hypothefis itfelf, and confequently art 

 not fible to judge of its merits or defe(5l> : and a late writei 

 (Dr. 'fhomfon) in his Syftem of Chemillry, vol. iii. p. 27O; 

 fpeakiug of the uniform diffufion of the different gafes of th( 

 almolpliere, makes the fallowing obfcrvation : — " Kvcn Mr 

 Dalton's ingeniotii fLi|jpofuion, that they neither attract no 

 repel each other, would not account for this ctjual diftribu' 

 tion j for, undoubtedly on that fuppofition they would arrangi 



" Comniunlc«t(.d by the Aiithoi. 



thcmfelvc 



