484 Royal Society : — 



1 4. Carbonate of Lend. Cerussitc. PbO, CO.. 



« B =2*06131 j3 B =2'05954 y B =179148 

 a H *=2-15614 fl =2-15487 y H = 1-86329 



1 5 . Formiate of Baryta. BaO Fo O :J . 



Prismatic, a : b : c— 1 : 0*8638 : 07650. 

 a B =l*63098 /3 B ==1-5918! y B = 1-56788 

 a H =l'66047 /8 H =1-62176 y H = 1-59643 



1 6. Formiate of Lime. CaO Fo 3 . 



Prismatic, a : b : c=l : 07599 : 0*4671. 

 « B =1-57314 /3 B =l-50997 y B = 1-50669 

 a H =l-5?851 |3 H = 1-52971 y H = 1-52577 



1 7. Formiate of Strontia. SrO, Fo 3 + 2 HO. 



Prismatic, a ; b : c= 1 : 0*9477 : 0*8922. 

 a B =l:53421 jS B =l-51743 y B =l*48057 

 b h = 1-55624 /> H =1*53769 y H =l-49899 



18. Bimalate of Lime. CaO, 2M+9HO. 



Prismatic, a : b : c=l : 0-9477 : 0*8922. 

 a B =l-54037 j3 B =l-50293 yB =l-48873 

 a H =l-56500 /3 H =1*525G4 y H =l*51192 



19. Ferrocyanide of Potassium. 3KCy + Fe 2 Cy 3 . 



Prismatic, a : b : c=l : 07725 : 0*6220. 

 a B = 1*57586 /3 B = 1*56 151 y B = 1-55913 

 [forD] a D = 1*58306 /3 D =1*568S8 y D = 1*56596 



20. Asparagine. HO, C 8 H 7 N 2 3 + 2HO. 



Prismatic, a : b : c= 1 : 0*8327 : 0*4737. 

 a B *=l-61392 /3 B = 1*57517 y B = 1*54380 

 a H =l-64221 /3 H =1-60194 y H =l'56538 



" Liquid Diffusion applied to Analysis." By Thomas Graham, 

 Esq., F.R.S., Master of the Mint. (This paper is printed in full in 

 the March, April, and May Numbers of this Magazine.) 



" On some new Phenomena of Residuary Charge, and the Law of 

 Exploding Distance of Electrical Accumulation on Coated Glass." 

 By SirW. Snow Harris, F.R.S. 



Amain object of this paper is to prove that residuary charge in the 

 Leyden jar, subsequent to explosive discharge through an external 

 interrupted circuit, as in the case of discharge by a Lane's electro- 

 meter, is not the result of a spreading f the charge upon the un- 

 coated part of the glass, or of penetration within its substance, but 

 arises from an undischarged portion of the accumulation left as it 

 were behind, and still existing in precisely the same way and under 

 the same conditions as the original charge. 



