OBITUARY NOTICES. 
403 
a higher salary and were assigned to official duties of a 
broader aspect. In the course of such duties Professor Hazen 
frequently took his turn as forecast official and as editor of 
the Monthly Weather Review , while also acting as assistant in 
the Records Division. In July, 1891, in accordance with the 
terms of the transfer to the Department of Agriculture, he 
was appointed one of the professors of meteorology in the 
Weather Bureau, where he was at once assigned to regular 
and congenial duties in the Forecast Division. 
Having shown that the Hazen thermometer shelter was 
much better than the large, close double-louvered one for¬ 
merly used, his form was adopted by the Weather Bureau 
in 1885 and still remains in use. His experimental work 
with the sling psychrometer and dew-point apparatus was 
executed with great care and refinement, but his resulting 
psychrometer formula differs from those in current use, in 
that he rejected the important term depending on the baro¬ 
metric pressure. 
Professor Hazen was a frequent contributor to meteor¬ 
ological and other scientific journals. He was one of the 
supporters of Science during the years 1882-1889, and of 
the American Meteorological Journal , 1884-1896. He also 
published independently his “ Meteorological Tables 55 and 
“ The Tornado ;” and possibly other works. A complete list 
of his published writings would include about eight hundred 
titles. 
It must be confessed that a peculiar temperament some¬ 
times led him to beliefs and statements in scientific matters 
entirely untenable at the present day, but to which he ad¬ 
hered with such pertinacity that to some he occasionally 
appeared obstinate and headstrong. This was simply a 
result of the intense earnestness of his own convictions, which 
so completely absorbed his mind that there was no place for 
further considerations. However, the amiability of his char¬ 
acter always prevented any enduring unpleasant feeling be¬ 
tween himself and his associates. 
In addition to his work in meteorology, Professor Hazen, 
