Photographic studies of nebulae - Fifth paper

[1] *AM ASTR SOC, 1936, PUBL AM ASTR SOC, V8, P241

[2] *CARN I WASH, CONTR MOUNT WILS OBS, V579

[3] *LICK OBS, 1918, LICK OBS PUB, V13

[4] MT W CONTR, V256

[5] 1934, ASTRONOMIE, V48

[6] 1926, AP J, V63, P122

[7] 1935, PUB ASP, V47, P271

[8] 7T W C3NTR, V177

[9] 1923, AP J, V57

[10] 1920, AP J, V51, P4

[1] *AM ASTR SOC, 1936, PUBL AM ASTR SOC, V8, P241

[2] *CARN I WASH, CONTR MOUNT WILS OBS, V579

[3] *LICK OBS, 1918, LICK OBS PUB, V13

[4] MT W CONTR, V256

[5] 1934, ASTRONOMIE, V48

[6] 1926, AP J, V63, P122

[7] 1935, PUB ASP, V47, P271

[8] 7T W C3NTR, V177

[9] 1923, AP J, V57

[10] 1920, AP J, V51, P4