l7 Sunsiine Units Sample 26 CL 1045-P: Brazil, Beltsville #54289, obtained by Dr. L, lexander, Harch 2, 195l, "H).C cuxtrac- Tel + 0.7 tion of lh lbs. soil, O-l" depth, 0.99 g oxalate, 0.38 g oxide, 0.27 g Ca, 36 CL 1135-P: Sd Paulo, Brazil, Beltsville #5618, obtained by Dr. L. -ilexander, Jamiary 30, 1956, 3.04 + 0,27 CL 1129: Lima Peru, Beltsville #5656, obtained by Dr. L, itexander, January 9, 1956, electrodialysis extraction of 4 lds, soil, 0-6" depth, 15.57 g oxalate, 6.01 ¢ oxide, .29 ¢ Ca, De CL 1128: <ntofagasta, Chile, Belteville i'S6417, obtained by Dr, L. -clexander, January 13, 1956, electrodialysis extraction of lbs. soil, 0-3" 0,60 Oobh + le 0,04 1+ electrodialysis extraction of ) lbs. soil, 0-6" depth, 7.32 g oxalate, 2.90 g oxide, 1.96 g Ca. 0.0): depth, 9.35 g oxalate, 3,58 g oxide, 2.56 g Ca. 11.3 0675 t+ CL 1134-P: s.suncion, Pargeuay, Beltsville i756150, obtained by Dr, L. Jlexander, January 27, 1956, electrodialysis extraction of h lbs. soil, 0-6" depth, 5.79 g oxalate, 2,42 g oxide, 1.53 g Ca (less 1 g Ca added during last steo of electrodialysis procedure). Te VI. Ci, 1139-P: Durban, Natal, S, .frica, Beltsville #55777, obtained by Dr. L, .lexander, February 15, 1955, electrodialysis extraction of lbs. soil, Oml"" depth, 6.42 g oxslate, 2.55 g¢ oxide, 1.69 g Ca, h.u3 + 0.19 Precipitation ase Chicago, Illinois: Samples were collected in galvanized tubs placed on the roof of Jones Chemistry Laboratory, University of Chicago, For all samples, the equivalent precipitation in inches derived from sample volum and collection arza is given, don/gal 1. CL 290: Rain, 0.26) gal., 0.113" equivalent, collected Octcber 15, 195): to October 18, 195h, 26 CL 382: Rain, 1.62 gel., 0.82" equivalent, collected 1645, December 31, 1951, to 0700, January 6, be8B + OF CL 356, 357 & 358: 21.2 + 2,1 1955. 36 ° Snow, 0.30; gal., 0.16" equiva- lent, collected January 25, 1955 to February 3, 19.3 x 0.3 NYOV 1955. 73 Ph