and edges to be sanded smooth and true; excess cement to be removed in an approved manner followed by thoroughly washing and rinsing with neutral soap and water to remove all traces of soap, etc. before applying to protective coating. 8-27. MIRRORS: A glass mirror, size 12" x 18", ina white lacquered wooden frame shall be furnished and installed over each lavatory shown on the drawings. 8-28. DRAPES: Drapes called for at Building No. 221, 8-29. HARDWARE CLOTH: Location "B” shall be of size shown and shall be of flame-proofed cotton material, basket weave, color, light cream. Samples of drape material shall be submitted to Engineer for approval. Drapes shall be of the bi-parting type complete with Kirsch or equal heavy duty ceiling track, traverse with cords and pulleys. Hardware cloth for Greenhouse, Location "L” or as Otherwise indicated on the drawings shall be Type G, aluminum alloy, 14 mesh, conforming to Federal Specification RR-C-45/a. 8-20