418 PROCEEDINGS OF MONTREAL MEETING. 
GRADING OF MOUNTAIN SLOPES 
BY W. M. DAVIS 
Remarks upon the matter of the two papers were made by J. P. Iddings 
and the author. 
The Society then adjourned. 
No evening session was held, but the Fellows of the Society were ten- 
dered a reception by Mrs Frank D. Adams and Mrs John B. Porter in 
the Macdonald Mining Laboratories of McGill University. 
Session oF THuRSDAY, DECEMBER 30 
The Society was called to order at 10.10 o’clock a m, President Orton 
_in the chair. 
The report of the Photograph Committee was read by Professor J. F. 
Kemp, as follows : 
EIGHTH ANNUAL REPORT OF COMMITTEE ON PHOTOGRAPHS 
The committee have to report the addition of 187 views, bringing the 
full number in the collection up to 1558. The donors, named in the 
order of their sendings, are: 
(1) W. C. Stevenson (8); (2) Field Columbian Museum, Dr O. C. Far- 
rington (14); and (8) the U.S. Geological Survey (120). 
Tn addition to these, the Society has received through the influence of 
Mr li. V. D’Inyilliers the entire series of negatives, some 300 in number, 
belonging to the Second Geological Survey of Pennsylvania. Prints 
have not yet been prepared from these, but it is hoped that funds will 
be available so that such can be prepared in season for the next meet- 
ing. 
The acceptance on the part of the committee of this last gift brings up 
once more the question of the advisability of securing negatives when- 
ever possible. It will be remembered that the chairman brought this 
question to the attention of the Society at the Washington meeting in 
1896, and that no definite action was taken. 
It may be well to state in this connection that Professor P. H. Mell. of 
Auburn, Alabama, reports the loss by fire of negatives from which were 
prepared photographs numbered 310-318, inclusive; hence prints can 
no longer be furnished. 
