Casts for the first production of plays by the 47 Workshop, to be given in Agassiz Theatre at Radcliffe College, October 21 and 22, yesterday were announced by Professor G. P. Baker '87, head of the 47 Workshop and playwriting courses associated with it. Tentative casts practiced on "The Other One" Wednesday evening and "The Mountains" Thursday afternoon. Permanent casts are as follows: "The Mountains", by T. C. Wolfe 2G. Weaver,  Mr. J. M. Brown '23 Richard, his son,  Mr. W. F. Manley 2G. Laura, his daughter,  Miss Dorothy Sands, Radcliffe '15 Tom Weaver,  Mr. J. J. Daly Sp. Mag Weaver, Tom's wife,  Miss Doris Halman, Radcliffe '16 Robert, a mountaineer,  Mr. W. G. Thomas '24 Scenery by Miss Eleanor Eustis, of the School of the Boston Museum of Fine Arts. "The Crows Nest", by W. L. Manley 2G. The Greenhorn Kid,  Mr. Conrad Salinger '23 Joe-joe, Cockney, A.B.,  Mr. Royal Beale Sp. Mr. Peterson,  Mr. Leon Pierson Sp. Scenery by Mr. Rollo Wayne 2G. "The Other Once", by Arthur Ketchum 2G. The Connecticut Kid,  Mr. J. J. Daly Sp. Ramblin' Red,  Mr. H. F. Carleton 2G. The Other One,  Mr. Warrick Scott '22 Scenery by M. Oenslager '23.