OF ARTS AND SCIENCES, 297 



being uniform, while the velocity in lead diminishes very 

 rapidly. 



24. The siphon action with a tin bar cannot be long main- 

 tained, on account of the crystallization and consequent brit- 

 tleness of the bar. 



25. The crystalline amalgam has a constitution of Hg Sng. 



26. The liquid amalgam contained 1.55 per cent, to 1.73 

 per cent, of tin. 



27. The crystalline amalgam loses nothing by atmospheric 

 diffusion. 



28. Quicksilver permeates gold and silver, but very slowly. 



29. Zinc and cadmium are permeable to mercury, but dis- 

 solve in it. 



30. Iron, platinum, palladium, and copper bars are not at 

 common temperatures permeable to mercury. 



Three hundred and fifty-sixth meeting. 



January 28, 1852. — Adjourned Statute Meeting. 



Professor Peirce in' the chair. 



The Recording Secretary reported a list of the Members 

 of the Academy, arranged in classes and sections by the 

 Council, agreeably to the vote of the Academy at its last 

 statute meeting. 



The Academy then proceeded to consider the amendments 

 to the statutes reported by Professor Peirce at the last statute 

 meeting. After some discussion, it was 



Voted, That the amendments to the statutes, proposed at the ad- 

 journed statute meeting held December 3, 1851, be adopted. 



Dr. B. A. Gould, Jr. stated several reasons, which he 

 thought rendered it desirable that the nomination of Foreign 

 and Associate Members should be vested, as far as practicable, 

 in those sections of the Academy, to which, if elected, they 

 would belong. After a long discussion, he offered the follow- 

 ing amendment to the statutes : — 



VOL. II. 38 



