578 Anatj/lical Notices of Books. 



The two middle teeth in each jaw are longer and stronger than 

 the succeeding ones, which gradually diminish in size backwards : 

 behind the middle ones in the upper jaw, and immediately adjoin- 

 ing to them are two smaller teeth ; there is also a strong sharp 

 tooth at each angle of the mouth. 



Described from a specimen preserved in spirit, which formed 

 part of the noble collection brought from Sumatra by the late Sir 

 T. Stamford Raffles. 



Art. LXVI. Analj/tical Notices of Booh, 



The Transactions of the Linnean Society of London. Vol. xv. 

 Part the Second. 4to. pp. -200. . Plates xviii. 



The first paper in the present part which falls under our notice, 

 is of a general nature, occupying the neutral ground common to 

 both Zoologists and Botanists, and developing principles in the 

 exposition of which each of these extensive classes is equally in- 

 terested. It is " On Systems and Methods in Natural History," 

 and is from the pen of the Secretary of the Society, J. E. Bicheno^ 

 Esq., whose observations are directed to show, that the artificial and 

 natural systems aim at two very distinct objects, which are in some 

 measure incompatible with each other : the one being intended to 

 make us acquainted with individuals ; and the other, founded upon 

 an acqaintance with individuals, to combine them according to their 

 characters, so as to abridge the labour of reasoning, and to enable 

 us to ascend from particular to general truths. Division and sepa- 

 ration is the end of the artificial system : to establish agreements 

 is the end of the natural. In one case we reason a priori, in the 

 other, a posteriori. It has appeared to Mr. Bicheno, that many- 

 modern naturalists have not adopted these truths, and that it is 

 the prevalent error of the day to attempt to generalise where they 

 ought to analyse, while their arrangements, called natural, are 



