TY - BOOK AU - Johnston,H.F. AU - McNish,A.G. AU - Forbush,S.E. AU - Scott,W.E. TI - Magnetic results from Huancayo observatory, Perú, 1922-1935 U1 - 538.7/C28M 21 PY - 1948/// CY - Washington, D.C PB - Carnegie Institution of Washington Publication, KW - GEOMAGNETISMO KW - HUANCAYO KW - PERÚ N1 - Volumen X-A; 1. The observatory site -- 2. The observatory buildings -- 3. General program of investigations -- 4. Magnetic absolute instruments and methods of use -- 5. Variation instruments and methods of use -- 6. Constants of the variometers and notes on instrumental operation and maintenance -- 7. Absolute observations and variometer base-line values -- 8. Basic hourly values and associated means ER -