Magnetism, Cohesion, Adhesion and Viscosity. 507 



follow. The glass needle was of flint glass. It is possible 

 that one of crown glass might have given even higher results ; 

 but if so its effects could not have been appreciable in the 

 cases above 90". By a reference to the counter experiments 

 where crown and flint ghiss were the substances, and the 

 metals the needles, there will be seen to be a great equality in 

 the results. 



M magnet; I iron ; P. G. pure gold ; Gl8c. gold 18 carats; 

 S silver ; P palladium ; PI. platinum ; Cad. cadmium ; T tin ; 

 L lead; Z zinc; Cop. copper; B brass; Germ. S.German silver; 

 Ars. arsenic ; Gl. glass. 



1st Class. 



Gold (pure) with M 90°, difficult; I 90°+ ; P. G. 90°+ • 

 G I8c. 90°; P 90°; PI. 81°; Cad. 90 f. ; T 90°+ ,' 

 Z90°+. 



Gold (18 carats) with M 90°, difficult; I 90°; T90°+- 

 B 90° X . ' T- , 



Silver (pure) with M 90° + ; I 90° + ; Cad. 90°; T90°x. 

 Silver (coin) with M 90° + ; Cad. 90° + ; T 88°. 

 Palladium with M 68° ; I 90°+; P40°; Cad. 60°; T 90°. 

 Platinum with M 65' \ I 90° ; P. G. 86° ; PI. 75°; P 25°- 



Cad. 81°; T 82°; Gl. 90° f. easy. 

 Cadmium with M 90°; PI. 76°; after many efforts it would 



not come up to the 81° of the cadmium needle and plati- 

 num ; Cad. 90°, easy; V 90°, very difficult. 

 Tin with M 90° + ; I 90°, but difficult; Cad. 90°, weak; 



T 90°, difficult at every step. 

 Lead with M 90° + ; I 90°+ ; P. G. 90° f. very easy ; PI. 90°, 



easy; L 84°; Z 90°, difficult; B 90° f.; Gl. 90° f. very 



firm. 

 Zinc with M 90°; Cad. 90°; T 90° x ; L 90 x ; Z 90°; 



Cop. 90°. 

 Copper with M 90° + ; P. G. 90° f. firm ; PI. 90° + ; T 90° x; 



Z90°; Cop. 90°; B 90°, f firm. 

 Iron with I 90°, very easy ; T 90°, rather difficult. 

 Mercury with M 90°, sticks; G. 18c. 90°, sticks; T 76°. 

 Antimony with M 66° ; I 27° ; P. G. 90° + ; PI. 50°; Cad. 



90°, very difficult ; T 90°; Cop. 90° f. ; B 90°, firmish with 



the cut end. 

 Bismuth widi M 51"; I 77°; P. G. 90° + ; PI. 91"; Cad. 



90, difficult; T 90°; Cop. 90°; Gl. 90'. 

 Chromium with M 90°; at first it (juite failed, but rose by 



waiting a very long space of time up to 90 ; 1 60° ; PI. 90° : 



T failed ; L 36°. 

 Manganese with M. A.; PI. fiiiled; T 10°. 



