1892. ] Notes and News. 229 
OPEN LETTERS. 
Pink and yellow pond-lilies. 
Pink pond-lilies are very commonly sold in Providence at the card 
C. Davis. ‘Correspondents can always purchase them 
th kindscome from Cape Cod. We used to have, according to 
George Thurber, a locality for the pink ones near Providence; it has 
long since vanished. 
t. J. F. Collins has found Zotws corniculatus here.—W. W. BAILEY, 
Providence, RT. 
NOTES AND NEWS. 
Two forms of registering a f zi iration are de- 
5 pparatus for studying transpirati 
seribed by Messrs. Taylor and Frost. 
Tur May number of the Student opens with a sprightly sketch of 
Julius von Sachs by Mr. Hubert M. Skinner. 
Bios: © PaPERs of botanical interest in the June number of the 
pr llich- naturwissenchaftliche Zeitschrift are “the quality and structure 
: fir wood,” by Dr. R. Hartig and “the influence of elevation on the 
€mperature of the soil,” by Dr. E. Ebermayer. 
n LUCID SUMMARY of our present knowledge of the nature and origin 
Ps ecundation both in the plant and animal world is to be found in 
oo February and April numbers of the American Naturalist. \t is the 
xt (and illustrations) of a lecture delivered by Mr. H.J. Webber of 
the Shaw School of Botany before the Alumni Association of St. Louis 
ical College. ;: 
hey AmM, under the direction of Prof. Detmer, has conducted 
— of experiments on the intramolecular respiration of plants, by 
also with the ; — 
sPgdics —See Ber. d. deutsch. 
bot. Geseils., meh x ‘heft peice up to nine days 
PRIZE of a thousand marks is offered by the Experiment Station 
of me Java for the. best investigation ba the causes and eae ot 
the swounced later. Manuscripts have to be written in German, and 
commit precautions for withholding the name of the writer from the 
= e of award are to be observed. 
HE Wisconsin A. : held its field 
Meet; capDEmy of Sciences, Arts and Letters he 
mine’ for 1892 at Ripon, Wis., on June 2—4. The plans of the ek 
tegarding out-door work were completely blocked by the steady 
