20 
ing January, looking up the literature concerning the occurrence 
of tannins, acids and alkaloids in plants, in connection with his 
studies on the factors concerned in the immunity of plants to 
specific diseases. 
Among the “discoveries” of Mr. Norman Taylor, during his 
recent visit to Santo Domingo, was a work upon the flora of the 
island, apparently not known to any of the students of the West 
ndian flora. It is a book of 118 pages, entitled “ Las familias 
vejetales reprensentadas en la flora de Santo Domingo,” and pub- 
lished at Santo Domingo in 1897. The author is Rafael M, 
Moscoso, who refers repeatedly to a larger and still unpublished 
work from which the present one is merely an extract. Sr. 
Moscoso’s brother, F. Eugenio Moscoso Puello, secured a copy 
of this book for Mr. Taylor, and this has been presented by him 
to the library of the Garden. 
Prof. D. S, Martin has recently presented to the Garden an 
interesting parcel of old botanical drawings. Some are pencil 
sketches, by Dr. John Torrey, of the structure of the flowers 
and fruit of plants of New York State ; there are also a number 
of colored sketches of fungi, probably the work of D’Jurco V. 
Knevels, whose signature or initials appear upon several of them. 
Dr. Knevels was a fellow-student with Dr. Torrey at the College 
of Physicians and Surgeons, and was one of the original mem- 
bers of the Lyceum of Natural History (now the New York 
Academy of Sciences). 
The following letter has been received by the Director-in-Chief 
and the lantern-slides offered have been gratefully accepted, on 
behalf of the Board of Managers: 
January 6, 1910. 
Dear Sir :— 
This Commission desires to present to each of a few of the 
leading educational institutions of the State a set of seventy-three 
stereopticon views relating to the discovery of the Hudson River 
and the inauguration of steam navigation thereon and will be 
happy to send you a set if you will kindly signify to us that it 
will be acceptable and useful in the work of your institution. 
The views are the same as were used in the public lectures de- 
