00492nam a2200157Ia 4500001001000000003000500010008004100015010001100056040000900067245009700076260005500173300001000228440004900238650002900287700001800316Para_4197CHAP220125s1940    xx            000 0 und d  a202745  cCHAP  aPenetration of certain liquids through the pronotum of the american roach  /c W. C. O'kanel  aDurham, N. H.  :b Agricultural Experiment Station  a15 p.  aNew Hampshire Agri. Exp. Sta. Tech. bull; 74  aInsecticidas  Cucarachas  aO'kane, W. C.