Osmond and T(oberls-%Austcn. 
Phil. Trans . 1896. A. Plate 10. 
No. 11. Gold alloyed witli 0*2 0 / o of 
Potassium. X 150 diain. Illumi- 
[ Bated perpendicularly. 
No. 15. Gold alloyed with 0‘2 °/ 0 of 
i Thallium. X 150 diam. Illumi- 
j nated perpendicularly. 
No. 19. Gold alloyed with 0*2 °/ ? 
Thallium. Annealed, x 150 diara. 
Illuminated perpendicularly. 
No. 12. Gold alloyed with 02 °/ 0 of 
Rhodium. x 150 diam. Illumi¬ 
nated perpendicularly. 
No. 16. Pure Gold. Etched with sul¬ 
phuric acid, x 150 diam. Illumi¬ 
nated perpendicularly. 
No. 20. Gold alloyed with 0'2 °/ Q of Bis¬ 
muth. Annealed. x 150 diam. 
Illuminated perpendicularly. 
No. 13. Gold alloyed with 02 °/ 0 of 
Aluminium. X 150 diam. Illumi¬ 
nated perpendicularly. 
No. 17. Gold alloyed with 0'2 °/ 0 of 
Indium, x 500 diam. Illuminated 
perpendicularly. 
No. 21. Gold alloyed with 0’2 °/ 0 of Bis¬ 
muth. Annealed. x 1000 diam. 
Illuminated perpendicularly. 
No. 14. Gold alloyed with 0‘2 °/ 0 of 
Indium. x 150 diam. Illuminated 
perpendicularly. 
No. 18. Gold alloyed with 0'2 °/ c of 
Indium. Etched with nitric acid. 
X 150 diam. Illuminated perpen¬ 
dicularly. 
No. 22. Gold alloyed with 02 °/ ? of 
Antimony. Annealed. X 150 diam. 
Illuminated perpendicularly. 
