EFFECTS OF SOIL EROSION ON NAVIGATION IN UPPER CHESAPEAKE BAY

[1] ADDISON H, 1856, COMPLAINT AG BROWN S, P16

[2] Babb C C, 1893, Science, V21, P342

[3] FOOD COMES FROM SOIL [J]. GEOGRAPHICAL REVIEW, 1944, 34 (01) : 57 - 76

[4] BROWN RH, 1943, AM GEOGR SOC PUBL, V27, pCH12

[5] A SERIES OF POPULATION MAPS OF THE COLONIES AND THE UNITED STATES, 1625-1790 [J]. GEOGRAPHICAL REVIEW, 1940, 30 (03) : 463 - 470

[6] GAHN BW, 1940, G WASHINGTONS HEADQU, P94

[7] GOTTSCHALK L. C., 1944, Soil Conservation, V10, P3

[8] GOTTSCHALK LC, 1944, SOIL CONSERV, V10, P11

[9] GOTTSCHALK LC, 1943, 5 US SOIL CONS SERV

[10] GOULD CP, 1915, J HOPKINS U STUDI 33, V1, P156

[1] ADDISON H, 1856, COMPLAINT AG BROWN S, P16

[2] Babb C C, 1893, Science, V21, P342

[3] FOOD COMES FROM SOIL [J]. GEOGRAPHICAL REVIEW, 1944, 34 (01) : 57 - 76

[4] BROWN RH, 1943, AM GEOGR SOC PUBL, V27, pCH12

[5] A SERIES OF POPULATION MAPS OF THE COLONIES AND THE UNITED STATES, 1625-1790 [J]. GEOGRAPHICAL REVIEW, 1940, 30 (03) : 463 - 470

[6] GAHN BW, 1940, G WASHINGTONS HEADQU, P94

[7] GOTTSCHALK L. C., 1944, Soil Conservation, V10, P3

[8] GOTTSCHALK LC, 1944, SOIL CONSERV, V10, P11

[9] GOTTSCHALK LC, 1943, 5 US SOIL CONS SERV

[10] GOULD CP, 1915, J HOPKINS U STUDI 33, V1, P156