6 , ▁March ▁ 2 3 , ▁March ▁ 3 0 , ▁April ▁ 6 ▁ 1 9 4 0 , ▁serial ▁segment ▁ ▁Dev il ' s ▁Port age , ▁Western ▁Story ▁Magazine , ▁April ▁ 2 4 ▁ 1 9 2 6 , ▁nov ella ▁ ▁" D iam onds ▁and ▁D ough ", ▁Cl ues , ▁September ▁ 1 9 3 1 , ▁short ▁story ▁ ▁Don ▁Pe on , ▁Arg os y ▁Week ly , ▁August ▁ 2 9 ▁ 1 9 3 6 , ▁serial ▁segment ▁ ▁Don ▁Ren eg ade , ▁Arg os y ▁Week ly , ▁November ▁ 1 1 , ▁November ▁ 1 8 , ▁November ▁ 2 5 , ▁December ▁ 2 ▁ 1 9 3 9 , ▁serial ▁segment ▁ ▁Do omed ▁by ▁Post , ▁The ▁Arg os y , ▁June ▁ 1 9 0 7 , ▁serial ▁segment ▁ ▁Double ▁Death ▁T akes ▁the ▁Air , ▁Three ▁Star ▁St ories ▁September ▁# 1 ▁ 1 9 2 9 , ▁nov ella ▁ ▁The ▁Double ▁Sp ot , ▁A ce - High ▁Nov els ▁Month ly , ▁October ▁ 1 9 3 2 , ▁nov ella ▁ ▁" Double - C ros ser ", ▁Sm ash ing ▁Det ect ive ▁St ories , ▁September ▁ 1 9 5 1 , ▁short ▁story ▁ ▁Dra wn ▁F angs , ▁Western ▁Story ▁Magazine , ▁October ▁ 8 ▁ 1 9 2 7 , ▁nov ella ▁ ▁D uel ▁in ▁the ▁Arena , ▁R ode o