University of Virginia Library

Search this document 
The Jeffersonian cyclopedia;

a comprehensive collection of the views of Thomas Jefferson classified and arranged in alphabetical order under nine thousand titles relating to government, politics, law, education, political economy, finance, science, art, literature, religious freedom, morals, etc.;
3 occurrences of jefferson cyclopedia
[Clear Hits]

expand sectionA. 
expand sectionB. 
expand sectionC. 
expand sectionD. 
expand sectionE. 
expand sectionF. 
expand sectionG. 
expand sectionH. 
expand sectionI. 
expand sectionJ. 
expand sectionK. 
expand sectionL. 
collapse sectionM. 
5175. METEOROLOGY, Slow progress in.—
expand sectionN. 
expand sectionO. 
expand sectionP. 
expand sectionQ. 
expand sectionR. 
expand sectionS. 
expand sectionT. 
expand sectionU. 
expand sectionV. 
expand sectionW. 
expand sectionX. 
expand sectionY. 
expand sectionZ. 

expand section 
expand section 
3 occurrences of jefferson cyclopedia
[Clear Hits]

5175. METEOROLOGY, Slow progress in.—

Of all the departments of science no one seems to have been less advanced for the last
hundred years than that of meteorology. The
new chemistry, indeed, has given us a new
principle of the generation of rain, by proving
water to be a composition of different gases,
and has aided our theory of meteoric lights.
Electricy stands where Dr. Franklin's early
discoveries placed it, except with its new modification
of galvanism. But the phenomena of
snow, hail, halo, aurora borealis, haze, looming,


Page 550
&c., are as yet very imperfectly understood.
I am myself an empiric in natural philosophy,
suffering my faith to go no further than my
facts. I am pleased, however, to see the efforts
of hypothetical speculation, because by the collisions
of different hypotheses, truth may be
elicited and science advanced in the end. This
skeptical disposition does not permit me to say
whether your hypothesis for looming and floating
volumes of warm air occasionally perceived,
may or may not be confirmed by future observations.
More facts are yet wanting to
furnish a solution on which we may rest with
confidence. I even doubt as yet whether the
looming at sea and on land is governed by the
same laws.—
To George F. Hopkins. Washington ed. vii, 259.
(M. 1822)

See Climate.