11 



CONTENTS. 



Preface, . . . . s . 



Petrographical Description of the Eock Specimens 

 I. Rocks of Tenerife, 

 II. Rocks of the Cape Verde Islands, . 



A. Rocks of St. Vincent, 



B. Rocks of St. Iago, . 



III. Rocks of St. Thomas, West Indies, 



IV. Rocks of Fernando Noronha, 

 V. Rocks of Ascension, 



VI. Rocks of the Tristan da Cunha Group of Islands, 



A. Rocks of Tristan Island, . 



B. Rocks of Inaccessible Island 



C. Rocks of Nightingale Island 

 VII. Rocks of the Falkland Islands, 



VIII. Rocks of Marion Island, . 

 IX. Rocks of Kerguelen Island, 

 X. Rocks of Heard Island, 

 XI. Rocks of Kandavu, Fiji Islands, 

 XII. Volcano of Goonong Api, Banda Islands, 

 XIII. Rocks from the Volcano of Ternate, 



XIV. Rocks of the Philippine Islands, . 



A. Rocks from the Volcano of Camiguin, 



B. Rocks of Zebu and Malanipa Island?, 



XV. Rocks of Juan Fernandez, 



i 



1 

 13 

 13 



its 



23 



29 



39 



74 



75 



82 



89 



97 



104 



107 



142 



149 



153 



157 



160 



160 



171 



176 



