£I§ SCIENTIFIC NEWS. 



willow, that take root though deprived of their buds, seen* 

 to furnish a strong objection to it; but he has found, that 

 in this case little subsidiary buds are unfolded opposite 

 points that were occupied by the stipules of the leaves. 

 Carbon T>f There is uo subject of more general importance in the 



P imts * vegetable economy than the origin of the carbon of plants. 



Mr. Crell, the celebrated chemist of Helmstadt, has thj$ 

 year communicated to the class some experiments, that 

 seem to give a very high notion of the power of vegetation. 

 He asserts, that he has made plants grow and produce seed 

 in pure sand, watering them only with distilled water, and 

 4 supplying them with a given quantity of air, in which the 

 carbonic acid must be almost as nothing in proportion to 

 the carbon produced. It is to be observed however, that, 

 though the plants were covered with a glass, he could not 

 pre. cut the access of the external air through the sand. 



fVitosophtcal Messrs. Laplace, C. L. Berthollet, Biot, Gay Lussac, 



ani chemical von Humboldt,Thenard, Decandolle, Cpllet-Descotils, and 



^ y ° J T ~ A. B. Berthollet, have formed a society under the name of 



philosophical and Chemical at the village of Arcueil, near 



Paris, which meets once a fortnight, and published the first. 



vol. of its Memoirs in I8O7. 



Berlin Society. At the Royal Academy of Sciences at Berlin, the sixth of 

 August last, a paper on the resistance of the air was read by 

 Mr. Bufa ; one on the. advantages and disadvantages of 

 national prejudices by Mr. Klein; and a fragment on the 

 great cataracts of the river Oronoko by Mr. von Humboldt. 

 The following prize subject is proposed for 1810. " To 



Prize question. " giveacomplete theory of the hydraulic ram, paying regard 

 *' to the adhesion of water *." 



Dr. Gauss has sent to the Koyal Society of Gottingen the 

 following observations of two of the new planets. 



1*/. Observations of Pallas. 



Apparent right Apparent declina 



ascens. tion. 



70° 16' 31" 19 59' 13" S. 



70 42 39 19 20 44 



70 $6 44 19 1 8 - 



71 39 2 18 5 

 * For a descriytion of hs. mechanism, and soma remarks on it, see 



Jou/aal, vol, XIV, p. 98. 



2c*. Obscr- 



