Draft and manuscript copy of 'Simplified Structure Factor and Electron Density Forumale for the 230 Space Groups of Mathematical Crystallography', by Lonsdale. 149pp manuscript draft formulae and data entitled Simplified strucutre factor and electron density formulae for the 230 space-groups. Publishev version of Simplified Structure Factor and Electron Density Forumale for the 230 Space Groups of Mathematical Crystallography, by Lonsdale, published for the Royal Institution, 1936. 1936