Surface atmospheric extremes (launch and transportation areas)

Cover title.

Synoptic radio maps of the sun at 3.3mm for the years 1967-1969,

Mode of access: Internet.

Annals.

Mode of access: Internet.

Radiant energy in relation to forests,

"Literature cited": p. 95-103.

Annals of the Astrophysical Observatory of the Smithsonian Institution.

Vol.7 includes selections from the annual reports of the Director, 1941-1952, and astronomical tables for 1939-1952.