JANUARY 26, 1912] 
Transfers were never successfully made to 
“hard,” that is, well water. I never used dis- 
tilled water but simply rain or city tap water. 
Experiments made with Sticklebacks.— 
Gasterosteus aculeatus and pungitius and 
Apeltes quadracus also bear transfer which 
may ordinarily be made quite suddenly and 
without great loss. I transferred back an 
aculeatus directly from fresh to salt water; it 
survived only a few days, but as it was a spent 
male (in the fresh water) this may not be 
considered a fair test. 
Suddenly transferred fishes drop to the bot- 
tom of the tank and slowly move about after 
some time; this is due to the difference in den- 
sity chiefly, but differences in the tempera- 
tures of the water also have this effect, 
though it is sooner overcome. 
EUGENE SMITH 
HogoxkeEn, N. J. 
SCIENTIFIC BOOKS 
The Flora of Boulder, Colorado and Vicinity. 
By Francis Potter Daniets. Volume IL., 
No. 2, University of Missouri Studies. 
Price, $1.50. 
The author of this excellent piece of work 
is not a professional botanist but a specialist 
in Romance languages. While engaged in 
teaching French in the summer session of the 
University of Colorado in 1906 he made the 
collections upon which the present report is 
based. Through the University of Missouri, 
with which institution Dr. Daniels was 
formerly connected, his book of over 300 large 
octavo pages has been issued as a number of 
the “ University of Missouri Studies.” It is 
sumptuously printed in large type with wide 
margins and generous spacing. 
Dr. Daniels collected 1,036 species of plants 
during the single summer that he was in 
Boulder. To this number are added in his 
printed list some species reported from the 
vicinity in Rydberg’s “ Flora of Colorado” to- 
gether with others from various sources. The 
total number listed seems to be about 1,240. 
At various points in the body of the list new 
species and varieties are described. It is un- 
fortunate that because of lack of time Dr. 
SCLENCE 
145 
Daniels was unable to consult the university 
herbarium at Boulder. This collection, con- 
taining some 5,000 sheets of Boulder County 
specimens, is, therefore, not reported upon in 
the present publication. However, the large 
number of plants collected by the author him- 
self must surely comprise a very considerable 
part of the flora. His list is bound to be of 
great use to students of the local flora. 
In addition to the systematic list of species 
and localities there is a fifty-page introduc- 
tion in which various ecological matters are 
discussed. This is evidently not written for 
the professional botanist for the language is 
popular, not to say “breezy.” One is there- 
fore just a bit surprised by such terms as 
Ensiformes, Rimose, etc., which, set in heavy 
bold-face type, stare uncompromisingly at the 
patient reader who may happen to be inno- 
cent of a knowledge of the classical languages. 
A very full index completes this creditable 
publication. Francis RaMALEY 
UNIVERSITY OF COLORADO, 
BovuLDER, Coo. 
SCIENTIFIC JOURNALS AND ARTICLES 
Terrestrial Magnetism and Atmospheric 
Electricity for September, 1911, contains the 
following articles: 
“*Magnetiec Chart Errors and Secular Changes 
in the Indian Ocean,’’ by L. A. Bauer and W. J. 
Peters. 
‘“*Comparisons of Magnetie Observatory Stand- 
ards by the Carnegie Institution of Washington, 
No. I1.,’’ by J. A. Fleming. 
“‘Data for Abruptly-beginning Magnetic Dis- 
turbances, 1906-1909, No. II.’’: Reports from 
Batavia-Buitenzorg; Zi-ka-wei and Lu-kia-pang; 
Kew; Mauritius; Eskdalemuir; Dehra Dun, Ko- 
daikanal, Barrackpore and Toungoo; Tortosa; 
Samoa; Falmouth; De Bilt; Rud Skov; Pilar; 
and additional data for Potsdam; Agincourt; 
Porto Rico, Cheltenham, Baldwin, Sitka and Hono- 
lulu. 
“‘Peculiar Magnetie Disturbances of December 
28-31, 1908,’ by R. L. Faris. 
‘<The Magnetic Character of the Year 1910,’’ 
by G. van Dijk. 
‘‘Mean Values of the Magnetic Elements at 
Observatories,’’? compiled by J. A. Fleming. 
