908 
of the old barrier between the two basins in 
which this deposition was carried on. 
E. T. DumsBie 
SOCIETIES AND ACADEMIES 
THE ANTHROPOLOGICAL SOCIETY OF WASHINGTON 
THE 461st regular and 33d annual meeting of 
the society was held on April 30, at 8 P.M., in the 
new National Museum, with the president, Mr. F. 
W. Hodge, in the chair. The following officers 
were elected: 
President—Mr. G. R. Stetson. 
Vice-president—Mr. Francis LaF lesche. 
Secretary—Mr. William H. Babcock. 
Treasurer—Mr. J. N. B. Hewitt. 
Additional Members of the Board of Managers 
—Messrs. G. C. Maynard, Felix Neumann, E. T. 
Williams, Drs. E. L. Morgan and John R. Swanton. 
The following amendments to the by-laws were 
adopted: 
Art. I., Sec. 1, to read: ‘‘. . . Its members shall 
be classed as Active, Life, Associate, Correspond- 
ing and Honorary.’’ 
Art. I., Sec. 2, for the words ‘‘This sum... 
January’’ the following to be substituted: ‘‘Mem- 
bers elected at any time during the first half of 
the calendar year shall pay the full amount of 
their annual dues; those elected during the last 
half of the year shall pay one half the regular 
annual dues.’ 
Art. I., Sec. 3, to read: ‘‘Associate Members 
are those who, after having been elected, shall 
have paid the annual fee. The annual dues for 
Associate Members shall be Two ($2.00) Dollars 
for each calendar year, payable in January. This 
sum entitles them to all rights and privileges of 
the Society with the exception of the American 
Anthropologist.’’ 
Old sections, 3, 4, 5, 6, 7, to read 4, 5, 6, 7, 8. 
Art. I., See. 5 (formerly See. 4), ‘‘ Proceedings’’ 
to be substituted for ‘‘Transactions’’; ‘‘or asso- 
‘ciate’’ to be inserted after ‘‘active’’; ‘‘those 
‘elasses’’ to be substituted for ‘‘that class.’? 
Art. I., See. 6 (formerly Sec. 5), for ‘‘ Transac- 
tions,’’ read ‘‘ Proceedings. ’’ 
Art. II., See. 4, for ‘‘quarterly’’ read ‘‘an- 
nual’’; for ‘‘transactions’’ read ‘‘proceedings.’’ 
Art. III, See. 1, for ‘‘alternate Tuesdays’’ 
tead ‘‘third Tuesdays of each month.’’ 
Art. III., See. 3, after the words ‘‘Board of 
Managers’’ insert ‘‘the President.’? 
Art. III., Sec. 4, imsert after ‘‘President,’’ 
‘Cor at the recommendations of three members of 
the Board.’’ 
SCIENCE 
[N.S. Vou. XXXV. No. 910 
Art. VI., See. 1, to read: ‘‘These by-laws may 
be amended by a three-fourths vote of the Active, 
Associate and Life Members present at any offi- 
cially appointed meeting of the Society, provided 
notice of the proposed amendment shall have been 
given, in writing, at a meeting held not less than 
sixty days previously. 
TRUMAN MICHELSON, 
Retiring Secretary 
THE PHILOSOPHICAL SOCIETY OF THE UNIVERSITY 
OF VIRGINIA 
Atv the regular monthly meeting of the Scien- 
tifie Section of the Philosophical Society, held on 
April 15, 1912, Professor W. H. Echols presented 
a paper ‘‘On the Flow of Water in Artificial 
Channels, Clean Pipes.’’ The paper may be sum- 
marized briefly as follows: 
The paper continued the investigations presented 
two years previous, by proceeding to another de- 
gree of precision with wider range of application. 
The result gives for Chezy’s coefficient of resist- 
ance m in the expression for loss of head in clean 
pipes 
v2 
h=m = OG? 
the value 
0094 + a 
as 
ita O7V m .6r 
ii tu (.015 +) Va no ties 
r being the mean hydraulic radius and V the 
velocity expressed in feet and seconds. This value 
of m applies to the whole class of clean pipes of 
easy curvature, of glass, brass, tin, lead, zine, cast 
and wrought iron coated, riveted iron coated with 
asphalt. For straight new asphalt coated cast-iron 
pipes the velocities from the formula should be 
increased five per cent. and for wooden stave pipes 
ten per cent. Four hundred experiments were 
tabulated in the paper with diameters from one 
tenth of an inch to eight feet and velocities rang- 
ing from two tenths to fifty feet. Three graphical 
plates accompanied the paper drawn to large scale, 
giving corresponding values of the coefficients m 
and ¢ and the relations of V, r and s the hydraulic 
slope. The paper will be published in the Trans- 
actions of the society, Bulletin No. 10, Scientific 
Series. 
R. M. Biro, 
Secretary 
