-173- 
(397) MARTIN, J. T. 
1942* The toxicity of 1-elliptane and of poisons applied 
jointly, with further observations on the rotenone 
equivalent method of assessing the toxicity of 
derris root. Ann. Appl. Biol. 29t69-81. 
(398) MASSES, A. M. 
1940. Notes on some interesting insects observed in 1939. 
East Mailing [Kent] Res. Sta. Ann. Rpt. 27:70-73. 
(399) 
1941. Notes on some interesting insects observed in 1940. 
East Mailing [Kent] Res. Sta. Ann. Rpt. 28:61-65. 
(400) 
(402) 
1942. Some important pests of the hop. Ann. Appl. Biol. 
29:324-326. 
(401) 
1942. A means of preventing outbreaks of certain pests in 
experimental greenhouses. East Falling [Kent] Res. 
Sta. Ann. Rpt. 29:51. 
1943. Insect pests of the hop. Inst. Brewing Jour. 49:136- 
139. 
(403) MATHLEIN, R. 
1941. Investigations on pests of stored products. II. The 
grain moths, Tinea seoalella Zacher and T. gran el la 
L. [Sweden] Statens VSxtskyddsanst. Med"d"el. No. 34, 
56 pp. [in Swedish, with a summary in German. 
Abstract in Rev. Appl. Ent. (A) 31:281-282. 1943.] 
(404) MATTHEWMAN, W. G. 
1941. Two experiments which show promising control of the 
columbine borer, Papaipema purpurifascia, G. and 
R. (Phalaenidae) . Ontario Ent. Soc. Ann. Rpt. 71: 
26-29. 
(405) MATTHYSSE, J. G., and SCHWARDT, H. H. 
1943. Substitutes for rotenone in cattle louse control. 
Jour. Econ. Ent. 36:718-720. 
{406) MAXWELL, C. '.V. B. 
1941. Preliminary experiments on the control of the cran- 
berry fruit worm in New Brunswick. Ontario Ent. 
Soc. Ann. Rpt. 71:47-50. 
