OF THE INVERTEBRATE ANIMALS. 19 



Combustion. 



a. 0*7165 substance gave 1*220 carbonic acid and 0*425 water, 



, , r Carbon . . 46*70. 



hence per cent. < „ i ^.^a 



*^ (_ Hydrogen 6*54. 



b. 0*583 substance gave 0*9905 carbonic acid and 0*341 water, 



, ^ f Carbon . . 46*80. 



hence per cent. ^ tt i ceo 



^ \_Hydrogen 6*63. 



c. Ateuchus sacer. Tegument and wings. 

 Determination of the Ash. 

 0*068 substance gave 0*000 ash. 



Nitrogen. 

 0*237 substance gave 0*248 ammonio-chloride of platinum 

 = 6*57 percent, nitrogen, or at one view : — 



Lastly, the absence of sulphur and phosphorus was proved by 

 heating it to redness with a mixture of burnt marble and nitre 

 in the manner proposed by Wohler *. 



io«-The agreement is perfect, and we have every reason to regard 

 mis substance as distinct. As confirmatory experiments in tlie 

 examination of other members of this family, the most striking 

 reactions, viz. the insolubility in potash, the action of heat and 

 concentrated acids may now suffice. In this manner I examined 

 the following. — 



Order Species. 



Eleutherata. Carabus [hortensis, auratus, S^c), Calosoma 



[Sycophant a), Cicindela {campestris),Melo'e 



{proscarabcsus). 



Ulonata .... Forficula {auricularia), Gryllus {campestris). 



Locust a [viridissima), Gryllotalpa {vulgaris). 



Synxstata . . . Ephemera [vnlgata), Libellula {depressa), and 



\ many species of Phryganea. 



. Piezata Vespa{Crabro), Apis {mellifica), Formica (ru/a). 



* Liebig's Aimal. vol. li p. 1.57, in his investigation of the Quinone aeries. 



c 2 



