W.J.Green

Royal Institution MS

Laboratory notebook giving weekly summary of work, 6¾" x 8", soft black cover. Includes:

p.1 title page

pp.2-3 week commencing 26 March 1922: black development in soap-glycerin films; pointolite illumination of films; liquid air plant.

pp.4-7 week commencing 2 April: isolation of liquid oxygen calorimeter; soap-glycerin films; pointolite; electrolytic blacking of ring.

pp.8-9 week commencing 9 April: soap films

pp.10-11 week commencing16 April: soap films

pp.12-13 week commencing 23 April: soap films - tri-ethylamine oleates of different concentrations

pp.14-16 week commencing 30 April: soap films - use of thin platinum and tridium rings

pp.17- week commencing 7 May: soap films

pp.19-20 week commencing 14 May: soap films

pp.21 week commencing 21 May: soap films

p.22 week commencing 28 May: soap films - greater permanence of colour vortices; symmetrical and unsymmetrical vortices.

p.23 week commencing 4 June: soap films - nebular vortices

p.24-5 week commencing 11 June: soap films - colour vortices

pp.25-6 week commencing 18 June: soap films - symmetrical double vortices; evidence of wave form impressed on central stream

pp.26-7 week commencing 25 June: soap films - jets of air on "resonant" film; vortex ring photographs on silvery and black film.

pp.27-9 week commencing 25 July: soap films - soap films - cloudiness of pure oleic plateau solution; comparison of intensity of illumination reflected from silvery and black films; open air "resonant" film

pp.29-31 week commencing 9 July: soap films - clarification of solution; measurement of air rate through platinum nozzle, plain glass and spiral glass jets; sensitivity of jets on open air film; electric and magnetic influence tried on film and sensitive oxygen jets.

pp.31-3 week commencing 16 July: soap films - use of 10 year old Plateau solution; use of stumpy glass nozzle; arrangement of arc projection for showing film vortices and sensitive streams

pp.33-4 week commencing 23 July: soap films - trial of open air film for strong sound sensibility; replacement of turbid Plateau solution; luminosity ratios; theatre demonstration of colour vortices.

pp.34-6 week commencing 30 July: soap films - magnetic displacement of oxygen stream; effects of Bath gas nitr nitrogen, Canadian helium and hydrogen; electrical wind

p.36 week commencing 6 August; electrostatic field replacing magnetic field; bubbles; abstract on liquid oxygen in Warfare; transfer of Krypton & zenon to gas sample tubes

p.37 week commencing 18 Sept: films - vortices, colours, surface tensions of soap solutions

pp.38-9 week commencing 25 Sept.: viscosities and surface tensions of soap solutions; jet velocities for film vortices; samples of scyllitol inositol sent to Jensen of Copenhagen

pp.40-41 week commencing 2 Oct: work on damp and dangerous casing in large ground floor laboratory; lowering of epidiascope resistance because of heating and danger to cables above it; sound transmission through difference screens and reflectors - theatre trials; viscosity of oleic acid

p.42 week commencing 9 Oct: theatre trials on open air films as indicator for relative sound transmissibility of various materials; stability of soap solutions; permanence of froths and behaviour of bubbles

p.43 week commencing 16 Oct: liquid (oily) crystals; latent heats

p.44 week commencing 23 Oct: repairs to apparatus; vacuum distillation of C10H1Br; liquid air production; proposed rewiring of laboratory

p.45 week commencing 30 Oct: liquid air production; melting pressures of solid oxygen and solid air

p.46 week commencing 6 Nov: arrangement of apparatus for charcoal exhaustion; film jets; sample of B.P. oleic acid; two-way switch for changing from full to light are current

p.47 week commencing 13 Nov: test of compressor; B.P. oleic acid; Hg vapour pressures

p.48 week commencing 20 Nov: air compressor; plots of liquid hydrogen and liquid helium

p.49 week commencing 27 Nov: liquid air production; charcoal exhaustion of solid oxygen; theatre demonstration trials - film and manometer projection together: preparation of soaps

p.50 week commencing 4 Dec: calculation of vapour tensions of He, N, H and O in connection with limiting temperature by exhaustion; re-erection of gas engine and compressor

p.51 week commencing 11 Dec.: maintenance of apparatus; preparation of lecture theatre; bubble trials with oleic acid

p.52 week commencing 18 Dec: maintenance of apparatus; trial of H jets on open air film.

pp.53-end Blank