28. Commission des Nébuleuses et des Amas Stellaires by Shapley, M. H., Ambartsumian, MM, Baade, Bowen, Carpenter, de Kerolyr, Hogg, Mme H. B., Hubble, MM, Humason, Lampland, Lemaître, Lindblad, Lundmark, Madwar, Mineur, Mohr, Mlle J., Parvulesco, MM, Reinmuth, Reynolds, Schaumasse, Slipher, V. M., Stoy, Trumpler, Vanderlinden, van Maanen, Vyssotsky, Wallenquist, Wirtz, Wright, W. H., Zanstra

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