The Museum of Science and Art, Volume 5

angle apparatus apparent magnitude apparent motion astronomical atmospheric pressure axis axle boiler called centre Chap chronometric circular cistern cloth cock colour commencement condenser consequently convex cornea cylinder diameter diminished DIONYSIUS LARDNER direction disk distance distant objects diurnal diurnal motion Edition effect Electric Telegraph engine equal equinoctial equinox expedients explained external objects eye-ball F. W. NEWMAN Fcap force furnace glass greater Greek humours impression interval Julian calendar LARDNER'S MUSEUM length lens lenses less light lunar phases manner mean noon mean sun measure Mercedonius mercury meridian minute months moon moved observer optical passes pencils perception pipe piston piston-rod placed position produced pump rendered represented in fig retina revolve screen seasons seen sidereal day slides space spectacles square inch steam stroke successive surface telescope tube twelve University College upwards valve velocity vertical visible object vision vitreous humour weight