IE IOIICOIRILAUL. 
For the second time in the brief history of the JouRNAL OF 
GEOLOGY, we are called upon to record the loss of a member of 
its editorial staff. And now, as before, it is one in the prime of 
life, in the midst of a brilliant career, and in the enjoyment of 
rare prospects, Dr. George M. Dawson. Less than a year ago, 
he was elevated to the directorship of the Geological Survey of 
Canada, a position which he had amply earned by a score or 
more years of markedly successful work on the geology of the 
Dominion. His ‘Geology and Resources of the 49th Parallel,” 
prepared when he was yet a very young man, gave him a recog- 
nized place in the scientific world. It has been followed by a 
long list of papers of unusual merit. It is to Dr. Dawson 
especially that we are indebted for the geology of the northern 
cordilleras and the great northwestern plains beyond the 
national boundary. His studies lay along many lines, and the 
wide range of his abilities peculiarly fitted him for the multitude 
of questions that were presented in the exploration of his vast 
and varied field. We hope to present a more adequate notice of 
his work in a succeeding number. Ae CC: 
Reon 
In the very interesting experiments on ice motion, described 
by Mr. Case on previous pages of this number of the Journal, 
it may be worthy of note, that the force employed was localized 
and horizontal. Ina glacier, if it be assumed to act as a viscous 
liquid, the force is distributive and primarily vertical. In so far 
as there is a horizontal component it is derived from the verti- 
cal. It is therefore never in excess of the vertical (momentum 
and the lag in local adjustment aside). Ina perfect liquid it 
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