5. CCELODONTA. 323 



very short ; internasal bony, uniting the nasals, the intermaxillary, 

 and maxilla; into one mass. Hab. Asia, Europe, Africa. 



Rhinoct5ro9 a nariues cloisonni5es, Cuviei; Oss. Foss. ii. p. 64. 

 Coelodonta, Broimi, 18.31 ; Grarj, P. Z. S. 1867, p. 1030. 



Ccelodonta Pallasii. B.M. 



Rhinoceros, Pallas, Acta Acad. Petrop. 1777, ii. p. 210, t. 9; Nov. 



Com. Petrop. xiii. p. 447, t. 9, 10. 

 Rhinoceros tichorinus, Cuvier, Oss. Foss. ii. p. 64, t. 7. f. 1 (skuU), 



t. 8, 9, 11, 14 (bones) ; JBlainv. Osteogr. t. 13 (from Pallas). 

 Rhinoceros Pallasii, Desm. Mam. p. 402. 

 Rhinoceros antiquitatis, Blainv. 



Rhinoceros de Siberie, Cuv. Ann. Mus. xii. p. 19, t. 1, 3, 4. 

 Ccelodonta Pallasii, Gray, P. Z. S. 1867, p. 1031. 



Hab. Siberia, in the ice ; fossil, Himalaya &c. 



The following measurements are given in inches and lines, taken 

 by a pair of callipers ; so they are a straight line (or chord) from 

 point to point indicated, and not a line over or along the surface. 

 I believe they are sufficient for all zoological purposes ; but it is 

 the fashion of some zoologists and comparative anatomists to give 

 measurements with three, and sometimes even four places of deci- 

 mals, this arising from theu* taking a metre, aboiit 39 inches, for 

 the unit, which requires one decimal place for any measured or part 

 of a measured inch or space under 39 inches, two for any similar 

 measurement imder 4 inches, and three for any under 5 lines. 

 Others, to avoid this evil, write of 20 or 130 mm. (millimetres) ; 

 but this is as inconvenient, as the latter iinit is as much too small 

 as the other is too large. 



On pointing out this evil to a naturalist, who has published long 

 tables with such admeasurements, he replied, did it not look very 

 scientific ? I fear, unfortunately, there is a desii-e to mystify general 

 readers, and a quackery in natural history as in other less ennobling 

 studies. 



I have never yet met with a naturalist, even German or French, 

 that could show me the size of a bone marked in the French me- 

 trical system ; few cannot do this with considerable accm-acy when 

 marked in inches or feet. The having a measurement of well-known 

 different lengths, as yards, feet, inches, or lines, which bear a relation 

 to some parts of our own bodies, is a great advantage not found in 

 the metrical system. 



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