78 MISCELLANEOUS PUBLICATION NO. 725, U.S. DEPARTMENT OF AGRICULTURE 
Timing joby. (Gu 1169 
1934, A preliminary study of the length of the open vessels 
in the branches of American elm, Ohio Jour, Sci, 
34: 415-419, 
Liming, O. N. 1170 
1932, Present status of the Dutch elm disease, (Abstract) 
Phytopathology 22: 17, 
Liming ,.O. IN. 1171 
1933, Elm diseases in America, (Abstract) Phytopathology 
23) 214 
Liming, O. N. Miz 
1933. Some facts about Dutch elm disease for nurserymen, 
Amer. Nurseryman 57: 56, 66, illus, 
Lindgren, R. M. 1173 
1929, The deterioration of logs in storage and its preven- 
tion, South, Logging Assoc, Ann, Meeting Proc, 
18: 48-50, 
Also in Lumber Trade Jour. 96 (9): 35. Nov. 1, 1929. 
Revised, in South, Lumberman 138(1776): 49, illus. March 
15, 1930. 
Revised, in Lumber Trade Jour, 97 (6): 20. March 15, 1930, 
Lindgren, R. M, 1174 
1929. Sap-stain and mold control at southern mills, South, 
Lumberman 136 (1763): 60-62, illus. 
Also in Lumber Trade Jour, 96 (5): 29-30, illus. Sept. 1, 1929. 
Lindgren, R. M. 75 
1930, Chemical treatments for the prevention of sap-stain 
and mold in southern woods, South, Lumberman 
141 (1792): 57-59, illus. 
Also in Amer, Lumberman 2912: 35-37, illus. Mar. 7, 1931. 
Lindgren, R. M. 1176 
1930, Industrial research and the forestry school, Minn, 
Univ. , Forestry Club, Gopher Peavey 1930: 17-18. 
Lindgren, R. M. 1177 
1930, Preliminary experiments on control of sap-stain and 
mold in southern pine and sap gum by chemical 
treatment, Lumber Trade Jour. 97 (5): 25-26, 
illus, 
Also in South, Lumberman 139 (1781): 62-64, illus. May 15, 
1930; , 
Amer, Lumberman 2887: 46-47, illus. Sept. 13, 1930. 
Lindgren, R. M. 1178 
1930, Prevention of deterioration in stored logs by chemical 
treatment, South. Logging Assoc, Ann, Meeting 
Proc, 20s) w75-75. 
Also in South, Lumberman 141 (1793): 250. Dec. 15, 1930. 
Lumber Trade Jour. 98 (9): 37-38. Nov. 1, 1930. 
Lindgren, R, M. 1179 
1931, Forest products pathology, an aid to the intelligent 
utilization of wood, Minn, Univ. , Forestry Club, 
Gopher Peavey 1931: 18-21, illus, 
Lindgren, R, M, 1180 
1933. Decay of wood and growth of some hymenomycetes 
as affected by temperature. Phytopathology 23: 
73-81, illus, - 
