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Preliminary description of four new races of gigantic land tortoises from the Galapagos Islands
Ser 4, Vol 1, Page 1, Date 1907
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A botanical survey of the Galapagos Islands
Ser 4, Vol 1, Page 7, Date 1911
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The butterflies and hawk-moths of the Galapagos Islands
Ser 4, Vol 1, Page 289, Date 1911
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The snakes of the Galapagos Islands
Ser 4, Vol 1, Page 323, Date 1912
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Notes on the botany of Cocos Island
Ser 4, Vol 1, Page 375, Date 1912
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The geckos of the Galapagos Archipelago
Ser 4, Vol 1, Page 405, Date 1912
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Notes on the lichens of the Galapagos Islands
Ser 4, Vol 1, Page 431, Date 1912