TOXIC EFFECTS OF VAPORS OF MERCURY AND OF COMPOUNDS OF MERCURY ON PLANTS

[11] ZIMMERMAN P. W., 1933, FLORISTS EXCHANGE, V81, P13

[12] ZIMMERMAN PW, 1933, B THOMPSON I PROF PA, V1, P222

[13] ZIMMERMAN PW, 1955, BOYCE THOMPSON I PLA, V2, P124

[14] ZIMMERMAN PW, 1955, P GOVERNORS C EXHIBI, P23

[15] ZIMMERMANN PW, 1950, 1ST P NATL AIR POLL, P135

[16] 1930, OFFICIAL TENTATIVE M, P593

[11] ZIMMERMAN P. W., 1933, FLORISTS EXCHANGE, V81, P13

[12] ZIMMERMAN PW, 1933, B THOMPSON I PROF PA, V1, P222

[13] ZIMMERMAN PW, 1955, BOYCE THOMPSON I PLA, V2, P124

[14] ZIMMERMAN PW, 1955, P GOVERNORS C EXHIBI, P23

[15] ZIMMERMANN PW, 1950, 1ST P NATL AIR POLL, P135

[16] 1930, OFFICIAL TENTATIVE M, P593