Photography, by W. Abney -- The absorption of light and the colours of natural bodies, by G. G. Stokes -- Fluorescence, by G. G. Stokes -- The kinematics of machinery, by A. B. W. Kennedy -- On the steam-engine, by F. J. Bramwell -- Radiation, by G. Forbes -- Miscroscopes, by H. C. Sorby -- Electrometers, by J. T. Bottomley -- On the apparatus relating to vegetable physiology, by S. H. Vines -- Electrical measurements, by G. Carey Foster. II. Polarised light, by W. Spottiswoode -- Thermal conductivity, by G. Forbes -- Thermo-dynamics, by G. Forbes -- On balances, by H. W. Chisholm -- Geometrical and engineering drawing, by T. F. Pigot -- The laws of fluid resistance, by W. Froude -- The bathometer, by C. W. Siemens -- Instruments for experiments for experiments on sound. On temperament. By C. W. Siemens -- Sensitive flames as illustrative of synthetic vibration, by W. F. Barrett -- Lighthouse illumination, by T. F. Pigot -- The velocity of light, by G. Forbes -- Apparatus for physiological investigation, by J. Burdon-Sanderson -- Apparatus for physiological chemistry, by T. Lauder Brunton -- On eudiometers, by H. McLeod -- Technical chemistry, by H. E. Roscoe.
