MOUNT RAINIER 



observations of your late brother, Professor Edgar 

 McClure, relative to the altitude of Mount Rainier, 

 the data having been referred to me for reduction and 

 computation by yourself and by the officials of the 

 Mazama Club. 



It is but just to myself to say that the long delay 

 in the appearance of this report has been caused by un- 

 avoidable difficulties in the collection of subsidiary 

 data ; in particular, the comparison sheet showing the 

 instrumental error of Professor McClure's barometer 

 could not be found until the 9th of this month, when 

 it was discovered among some effects left by him in 

 Portland. A further delay has been occasioned in 

 obtaining a few other important data. A report ap- 

 proximately correct could have been made some time 

 ago, but I felt it was due to the memory of Professor 

 McClure's reputation for extreme accuracy that no 

 report whatever should be published until I was able to 

 state a result for which I could vouch as being the very 

 best that the observations were capable of affording. 



The thanks of all concerned are due to Mr. B. S. 

 Pague, Director of the Oregon Weather Bureau, for 

 numerous courtesies and for his efficient aid in the 

 collection of data. 



Very respectfully, 



E. H. McAusTER, 



Professor of Applied Mathematics. 



THE RESULT 



For the benefit of those not interested in the scientific 

 details of this report, it may be stated at once that 

 the summit of Mount Rainier, according to Professor 

 McClure's observations, is 14,528 feet above sea level. 

 The altitudes of various sub-stations occupied en route 

 will be found further on. An account of the data, 

 with description of the methods employed in reduction 

 and computation, is given, to indicate the degree of 

 reliance to be placed upon the result. 



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