http://b4hntuy3fimfh2227vf4f74emnya7p35i5brtqujs6leqvtclfwvjbqd.onion/doc/physics/diamonds-crookes/The%20Project%20Gutenberg%20eBook%20of%20Diamonds,%20by%20William%20Crookes..html
Metall. and Mining Soc.
of South Africa, Amer. Chem. Soc., Amer. Philos. Soc., Roy.
Soc. Sci. Upsala, Deutsch. Chem. Gesell. Berlin, Psychol.
Soc. Paris, “Antonio Alzate” Sci. Soc. Mexico. Sci. Soc.
Bucharest, Reg. Accad. Zelanti, Aci Reale; Corresp.