ADDII loNAI, COMMKNIS ON THK GKOI,0(;V OK IMF. JCAN FERNANDKZ ISLANDS 87 



24. A. JoiiANNSKN. Petrography, III, 11.334. 



25. K. DK .Mak(;i:rik. La tare (ie la 'I'erre. Ill, ]>. i3 5(j. 



26. I5aii.k\- Willis and U.S. Washington. San J*"elix and San Anibrosio, their geo- 



logy and petrogra])hy. Bull. Geol. Soc. of America. Vol. 35, 1924, p. 365. 



27. L. Ciui'.i! and C. Richardson. Geology of Galapagos, Cocos and Easter Islands. 



Uernice P. Bishop Museum, Honolulu. l^>ull. 100, 1933, p. 43, 47, 64. 



28. C liuKUi. Chemismus und provinciale \'erhaltnisse der jungeruptiven Gesteine 



des pacifischen Oceans und seiner Umrandung. Schw. Min.-petrogr. Mitt. 

 Banfl 6, I 926, p. I 7 7. 



I'll fortunately an interesting paper by Gorden A. Macdonald on the 'f^awaiian 

 l*etrograi)hic Province', i)ublished in the Bull. Geol. Soc. of America (60:2, 1949, 

 ]). 15S8), in which comi)arisons with Juan F'ernandez and other Central Pacific Islands 

 are discussed, has evaded my attention until this paper was already in print. 



