Rothamsted, Harpenden, England. August 1935. Parks grass. K20 encourages legumes. 11 1/25 -. Panatomic 120.GrayscalePendleton nitrate negative, Box 125 of 38
Rothamsted & Harpenden, Herts., England. 14, 15 June 1948. A.B. Stuwart F. Hardy, C. Kilian, L.I. Gr...
Rothamsted, Harpenden, England. August 1935. The barns. Panatomic 120.GrayscalePendleton nitrate neg...
Oxford & Jealott's Hill, Bracknall, England. August 1935. Mr. Fixen, O. Arrhenius, Joachim. Panatomi...
Rothamsted, Harpenden, England. August 1935. Broadbalk wilderness from another angle. Panatomic 120....
Rothamsted, Harpenden, England. August 1935. Left - No Manure. Rt. F.Y.M. Broadbalk Field. Panatomic...
Rothamsted, Harpenden, England. August 1935. Hoos field, Barley. Panatomic 120.GrayscalePendleton ni...
Rothamsted, Harpenden, England. August 1935. Harpenden common. Panatomic 120.GrayscalePendleton nitr...
Rothamsted, Harpenden, England. August 1935. The Central Building. 8 1/25 -.GrayscalePendleton nitra...
Preston Brockhurst & Wellington, Shropshire. England. 9th August 1935. Sugar beets. Wheat stubble. E...
Rothamsted, Harpenden, England. August 1935. Broadbalk wilderness. Farther half untouched for 50 yea...
Rothamsted, Harpenden, England. August 1935. Home of the Imperial Bureau of Soil Science. Schofield....
Rothamsted, Harpenden, England. August 1935. Crowther, B.A. Keen. 4 1/25 -. Panatomic 120.GrayscaleP...
Heriot, & Melrose; West of Newcastle. August 17 & 18, 1935. Pasture farms toward Alston. 4 1/300 -. ...
Rothamsted, Harpenden, England. August 1935. Sant Mattson. Panatomic 120.GrayscalePendleton nitrate ...
Cambridge, England; Holland & Athens, Greece. August 1935. Gyrotiller on Cambridge University Farm. ...
Rothamsted & Harpenden, Herts., England. 14, 15 June 1948. A.B. Stuwart F. Hardy, C. Kilian, L.I. Gr...
Rothamsted, Harpenden, England. August 1935. The barns. Panatomic 120.GrayscalePendleton nitrate neg...
Oxford & Jealott's Hill, Bracknall, England. August 1935. Mr. Fixen, O. Arrhenius, Joachim. Panatomi...
Rothamsted, Harpenden, England. August 1935. Broadbalk wilderness from another angle. Panatomic 120....
Rothamsted, Harpenden, England. August 1935. Left - No Manure. Rt. F.Y.M. Broadbalk Field. Panatomic...
Rothamsted, Harpenden, England. August 1935. Hoos field, Barley. Panatomic 120.GrayscalePendleton ni...
Rothamsted, Harpenden, England. August 1935. Harpenden common. Panatomic 120.GrayscalePendleton nitr...
Rothamsted, Harpenden, England. August 1935. The Central Building. 8 1/25 -.GrayscalePendleton nitra...
Preston Brockhurst & Wellington, Shropshire. England. 9th August 1935. Sugar beets. Wheat stubble. E...
Rothamsted, Harpenden, England. August 1935. Broadbalk wilderness. Farther half untouched for 50 yea...
Rothamsted, Harpenden, England. August 1935. Home of the Imperial Bureau of Soil Science. Schofield....
Rothamsted, Harpenden, England. August 1935. Crowther, B.A. Keen. 4 1/25 -. Panatomic 120.GrayscaleP...
Heriot, & Melrose; West of Newcastle. August 17 & 18, 1935. Pasture farms toward Alston. 4 1/300 -. ...
Rothamsted, Harpenden, England. August 1935. Sant Mattson. Panatomic 120.GrayscalePendleton nitrate ...
Cambridge, England; Holland & Athens, Greece. August 1935. Gyrotiller on Cambridge University Farm. ...
Rothamsted & Harpenden, Herts., England. 14, 15 June 1948. A.B. Stuwart F. Hardy, C. Kilian, L.I. Gr...
Rothamsted, Harpenden, England. August 1935. The barns. Panatomic 120.GrayscalePendleton nitrate neg...
Oxford & Jealott's Hill, Bracknall, England. August 1935. Mr. Fixen, O. Arrhenius, Joachim. Panatomi...