80 PROCEEDINGS OF THE AMERICAN ACADEMY. 
botanical collecting upon the Galapagos Islands, it will be seen that 
plants have been secured under no less than 2300 numbers and that 
about two-thirds of these have been examined during the preparation of 
this paper. With the exception of two cacti in the Engelmann Herbarium 
I have been unable to locate the phanerogams said to have been collected 
by Dr. Thomas Hill on the Hassler Expedition, and I should be greatly 
obliged for any information regarding their disposition. 
Although great pains have been taken to summarize in this paper 
every bit of available information regarding the flora of these islands, 
which have now been visited by more than a score of collectors, it must 
be admitted that our knowledge of the subject is still very incomplete. 
With all due appreciation of the valuable and self-sacrificing services 
which zodlogists and geologists have rendered in collecting plants in the 
Galapagos, it should be remembered, when interpreting the general 
results, that during the last half century the islands have been visited by 
only one trained botanical systematist and by him very hurriedly. It 
cannot be doubted that much remains to be done in exploring and 
recording the Galapageian flora, and it is to be earnestly hoped that 
future collectors will endeavor to secure specimens of each plant from every 
island, since these insular races are in many cases so similar that mere 
lists, based upon hurried field determinations, are almost valueless. 
BIBLIOGRAPHY OF THE BOTANY OF THE GALAPAGOS ISLANDS. 
By M. A. Day. 
Agassiz, Alexander. (1) General sketch of the expedition of the ‘‘ Al 
batross” from February to May, 1891. Bull. Mus. Comp. Zodl. 
xxiii. 1892, pp. 1-89, t. 1-21. 
— (2) Cactaceae in the Galapagos Islands. Nature, liii. 1895, p. 199. 
Andersson, Nils Johan. (1) Om Galapagos-darnes Vegetation. Stock. 
Akad. Handl. 1853, pp. 61-256. (Issued 1854.) 
— (2) Om Galapagos-darnes Vegetation, 1857, pp. 114, t. 1-16. (Al 
though this paper is dated 1857, a paper published in 1859 is cited by 
it on p. 89. : 
—— (3) Ueber die Vegetation der Galapagos-inseln. Linnaea, xxX1. 1861, 
pp. 571-631. 
Angstrém, Johan. (1) Fortecking och beskrifning éfver Mossor, samlade 
af Professor N. J. Andersson under Fregatten Eugenies verldsomseg- 
ling aren 1851-53, Stockholm, Akad. Ofversigt, xxix, 3-29 (1872), & 
xxx. 113-151 (1873). : 
Anonymous. The “Hassler” Expedition. Nature, vi. 1872, pp. 352-394. 
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