awareness of the plastic character of the material. His profound understanding of reinforced concrete allowed him to develop new, light, and magnificently sculptural forms. Maillart's bridges are of two distinct types: stiffened-slab arches and three-hinged arches with an integrated road slab. The 295ft (90m) Salginatobel Bridge (1930) near Schiers (Switzerland) is the most spectacular and classic example of this type in the world. The world's longest concrete and masonry arch bridge is the Rockville Bridge (1902), which carries four tracks of the former Pennsylvania Railroad over the Susquehanna River (USA) on 48 arches, 70ft (21m) each, for a total length of 3820ft (1164m). It was part of a massive twenty-year improvement programme under the direction of William H Brown, chief engineer. The largest all- reinforced concrete bridge, however, is the Tunkhannock Viaduct (1915) built by the Delaware, Lackawanna & Western Railroad in north-eastern Pennsylvania (USA), composed of ten semi-
, Carlson,J., Wan,K., Frise,E., Hoskins,R., Park,S., Svirskas,R. and Rubin,G. TITLE Direct Submission JOURNAL Submitted (10-AUG-2006) Berkeley Drosophila Genome Project, Lawrence Berkeley National Laboratory, One Cyclotron Road, MS 64-121, Berkeley, CA 94720, USA REFERENCE 10 (bases 1 to 2693) AUTHORS Adams,M.D., Celniker,S.E., Gibbs,R.A., Rubin,G.M. and Venter,C.J. TITLE Direct Submission JOURNAL Submitted (21-MAR-2000) Celera Genomics, 45 West Gude Drive, Rockville, MD 20850, USA COMMENT REVIEWED REFSEQ: This record has been curated by FlyBase. This record is derived from an annotated genomic sequence (NT_033777). The reference sequence was derived from CG7069-RA. FEATURES Location/Qualifiers source 1..2693 /organism="Drosophila melanogaster" /mol_type="mRNA" /db_xref="taxon:7227" /chromosome="3R" gene 1..2693 /gene="CG7069"
annaabi.ee 
