Lot 291
A collection of Barnes Wallis' lecture slides mainly about Radio telescopes and Wallis' Interests in fitted numbered wooden boxes (114 slides, in 3 boxes) Small Box R, Misc. Formulae, 25 slides Graphs, tables and photos showing the results of tests on duralumin, aluminium and other metals Box T, Miscellaneous, 48 slides Slides 1-6 Microscopic cross-sections of materials. Slides 7-14 Manufacture of mystery cylinders. Slides 15-21 Radio telescopes, mainly photos, 1 design. Slides 22-29 Architecture: photo of the Pantheon, plans of church rooves and domes. Slides 30-34 Architecture: photos of a bridge, photo of a chiming clock. Slides 36-42 Miscellaneous. Slides 44-50 Lines of poetry and sayings. Box X, Personal (Sir Barnes Wallis), 39 slides Back group - Five slides of old architecture. Middle group - 18 slides of ancient/old architecture. Front group - 10 slides of old/modern architecture and 18th century sailing ships. Three slides of architectural ground plans. Four slides of children's swings, slide, roundabout. Two other slides.  £100-200