54 



SPECIFIC GRAVITY TABLES. 



AUTHORITIES. 



11 f Wi 



12 ID'^ 



D'Andreeff. 22. 

 'Andreeff. 22. 

 13 Scheerer. 

 1* f Beudant. P. A. 14.474. 



15 I Beudant. P. A. 14.474. 



16 fSchaf!gotsch.P.A. 68.147. 

 See same paper for many 



determinations for opal- 

 ine minerals. 



i8(Ch. St. Claire Deville. 8.14. 



isjch. St. Claire Deville. 8.14. 



20Schaffgotsch. P. A. 68.147. 



21 .{v. Rath. 21.1001. 



21.1001. 

 21.1001. 



[ See 23. 



22 I V. Rath. 



23 \ V. Rath. 

 2* Mohs. 

 2'' Scheerer. 

 28 Breithaupt. 

 2' Kopp. J 



28 Ebelmen. 4.15. 



29 Ebelmen. 12.14. 



30 Hautefeuille. 16.212. 



31 Midler. 5.847. 



32 Klaproth. 



33 Karsten. 3. 



