478 British Association for the Advancement of Science. 



been recommended in that branch of science, may be expected to be ad- 

 vanced. 



The observations on the intensity of Terrestrial Magnetism, proposed by 

 the Mathematical and Physical committee, have been undertaken by Dr. 

 Traill ; and the Royal Society of Edinburgh have lent for his use their 

 Standard Needle, constructed under the superintendence of Professor Han- 

 steen. 



A summary of the observations which Mr. Henwood is making on the 

 electro-magnetic condition of metalliferous veins will be presented to the 

 meeting ; and it is probable that the suggestion of the committee may be 

 followed, in regard to the extension of tliese experiments to veins which 

 traverse horizontal and dissimilar strata. 



There is reason to expect that the objects contemplated by the Chemical 

 Committee, in recommending a revision of some of the primary data of 

 chemistry, will derive light from the labours of Dr. Prout and Professor 

 Turner, in addition to those of the eminent philosopher from whom the re- 

 commendations originated. 



Professor Daubeny and Mr. Johnston have undertaken the analytical re- 

 searches respectively entrusted to them ; and specimens of iron in different 

 stages of its manufacture have been transmitted to the latter gentleman 

 from the principal iron works in Yorkshire. 



In Geology, the inquiry respecting parallelism in the lines of disturbance 

 of the British strata will receive, it is hoped, the joint consideration of the 

 Rev. Wm. Conybeare and the Rev. Professor Sedgwick. 



In Botany, the -comprehensive inquiry proposed by the committee will be 

 illustrated by contributions which Professor Henslow proposes to add to the 

 Flora Cantabrigiensis, and by a systematic catalogue of the native plants of 

 the county of York, which the sub-curator of the Yorkshire Philosophical 

 Society is preparing for the press. 



Lastly, in Zoological research, for which no provision was made at the 

 late meeting, the officers of the Association have received from Dr. Knox 

 the promise of a memoir on the natural history of the Salmon. 



We cannot conclude this paper, without expressing our un- 

 qualified admiration, not only of the motives whicli have induced 

 so many eminent men to establish this truly scientific association, 

 but of the manner in which they have proceeded to execute 

 their intentions. There was, at first, some jealousy and some 

 opposition, but we hear little of either at present. As far as we 

 are informed, nearly all the leading men of science, at the uni- 

 versities of Oxford and Cambridge, have enrolled their names 

 in the list of members. We suppose that by this time, the most 

 distinguished men in the metropolis, will have followed their ex- 

 ample. We understand that several who did not assist at the 

 York meeting, including that eminent chemist, Prout, have 



