coefficient could at present only be found by special experiment for
each site. Three current meters were tried for some time with a special
lift, contrived to grip the meter firmly parallel to the current axis,
so as to register only forward velocity, and with a nearly rigid gearing
wire. No useful general results were obtained. Ninety specimens of silt
were collected, but no connection could be traced between silt and
velocity; it seemed that the silt at any point varied greatly from
instant to instant, and that the quantity depended not on the mean
velocity, but probably on the silt in the supply water. Forty
measurements of the evaporation from the canal surface were made in a
floating pan, during twenty five months. The average daily evaporation
was only about 1/10 in. The smallness of this result seemed to be due to
the coldness of the water--only 63 deg. in May, with 165 deg. in the sun
and 105 deg. in shade. Lastly, it must suffice to say that great care
was taken to insure accuracy in both fieldwork and computation.

* * * * *




THE GERM.

By ARTHUR ATKINS.


There seems to have sprung up within a few mouths a tendency to revive
the discussion on that hackneyed question, "Shall the germ be retained
in the flour?" This question has been more than once answered in the
negative by both scientific and practical men, but recently certain