128 
PACIFIC SCIENCE, Vol. XXI, January 1967 
REFERENCES 
Berning, Warren W. 1948. Investigation of 
the propagation of blast waves over relatively 
large distances and the damaging possibilities 
of such propagation. Aberdeen Proving 
Ground, Maryland, Ballistic Research Lab. 
Rept. 675. (Reprinted by the U. S. Bur. 
Mines, August 1950.) 
Blumenstock, David I. 1961. Climate of the 
States — Hawaii. U. S. Dept. Commerce, 
Weather Bureau Climatography of the 
United States, No. 60-51. 
Gutenberg, B., and C. Richter. 1931. 
Pseudo-seisms caused by abnormal audibility 
of gunfire in California. Gerlands Beitrage 
zur Geophysik 31:155-157. 
Perkins, Beauregard, Jr., Paul H. Lorrain, 
and William H. Townsend. I960. Forecasting 
the focus of air blasts due to meteorological 
conditions in the lower atmosphere. Aberdeen 
Proving Ground, Maryland, Ballistic Re- 
search Lab. Rept. 1118. 
