DA2 SCIENCE. 
forty stations were occupied, at fifteen of which 
simultaneous tidal observations extending over 
one complete Junation were obtained. Mr. E. 
D. Preston, in the National Geographic Magazine 
for October, summarizes the work done as. fol- 
lows: The average tide for the entire bay is 
about one foot, possibly less. For Old Point 
‘Comfort we have two and one-half feet ; for the 
mouth of the Potomac, one foot; for Washing- 
ton, three feet; Richmond, three feet; Elk 
River, at the head of the bay, two feet, and 
Annapolis less than one foot. The wind effect, 
however, is sometimes more than the total tide. 
For example, at Baltimore, the wind effect may 
amount to three feet, while the tide proper, un- 
influenced by local disturbances, is only one- 
thirdas much. The smallrange at Annapolis is 
due partly to the change in width of the bay, but 
principally to an interference at this point be- 
tween the incoming and outgoing tidal waves. 
When the crest of the southbound movement 
reaches the mouth of the Severn river it meets 
the northbound wave from the capes, and a 
partial neutralization of the vertical motion of 
the water takes place. 
THE International Commercial Congress held 
in connection with the Export Exposition of the 
Philadelphia Museums opened on October 12th. 
Many of the subjects that will be discussed are 
of scientific interest. 
THE Royal Photographic Society is holding 
its 44th annual exhibition in London this week. 
There are about 3830 exhibits of an artistic 
character and about 100 of a technical and 
scientific character. None of the latter, how- 
ever, represent any important advance. 
Tue American Public Health Association will 
hold its annual meeting at Minneapolis, begin- 
ning October 31st. 
THE second International Congress on Hyp- 
notism will be held in Paris from August 12th 
to 16th, 1900, under the presidency of Dr. 
Jules Voisin. 
THE Field Columbian Museum, Chicago, has 
arranged a course of eight lectures on science 
and travel to be given on Saturdays at three 
o'clock, as follows: 
Oct. 7. ‘The Cliff Dwellers of Colorado, Utah, Ari- 
[N.S. Von. X. No. 250. 
zona and New Mexico,’ by Mr. E. H. Cooper, Denver, 
Colo. 
Oct. 14. ‘ Hawaii,’ by Mr. R. J. Bennett, Chicago. 
Oct. 21. ‘A Cruise Among the Antilles—Puerto 
Rico,’ by Dr. C. F. Millspaugh, Curator, Department 
of Botany, Field Columbian Museum. 
Oct. 28. ‘ A Cruise among the Antilles—Cuba,’ by 
Dr. C. F. Millspaugh, Curator, Department of Botany, 
Field Columbian Museum. 
Noy. 4. ‘Some Curious Insects,’ by Mr. E. B. 
Chope, Assistant in Department of Zoology, Field 
Columbian Museum. 
Noy. 11. ‘ Fishes and Fishing on the Pacific Coast,’ 
by Dr. S. E. Meek, Assistant Curator, Department of 
Zoology, Field Columbian Museum. 
Noy. 18. ‘The Katcinas of the Hopi Indians,’ by 
Rey. H. R. Voth, Missionary to the Hopi Indians. 
Noy. 25. ‘The Eskimo,’ by Dr. George A. Dorsey, 
Curator, Department of Anthropology, Field Colum- 
bian Museum. 
AN inspector of timber has been created by 
the Government of the Dominion of Canada. 
With the view of preserving the remaining 
forests upon Dominion lands and Indian re- 
serves from destruction by fires and other 
destructive agencies, and of encouraging the 
reproduction of forest trees ; and also, as settle- 
ment is rapidly progressing in all parts of Man- 
itoba and the Northwest Territory, with the 
object of making an immediate inspection of the 
country, to ascertain what tracts should be set 
apart for timber reserves, before they are en- 
croached upon by settlers, the position of Chief 
Inspector of Timber and Forestry has been 
created. The headquarters of the inspector will 
be at Ottawa and his salary will be $2,500 per 
annum. 
A SALISBURY correspondent writes to the 
London Times that the feeling throughout South 
Wilts is strongly in favor of the Government 
acquiring Stonehenge at a reasonable price 
for the nation. At a recent meeting of the 
Wilton Town Council, it was decided to pe- 
tition the Government in favor of acquiring 
the ancient monuments, and the council are 
calling upon the county authorities and the 
archeological and antiquarian society to sup- 
port the petition. Several members of the coun- 
cil questioned very much whether Sir Edmund 
Antrobus has the, power of selling the ground 
around Stonehenge, which has been open to 
alt ane ae aint 
