Paper, 'Imperfect paper of Mr Boyle' by Robert Boyle Item is entitled 'imperfect paper of Mr Boyle' The paper consists of a number of experiments No. 18 concerns observations of the oils of cloves and aniseeds being heavier than water No. 21 concerning what chemists call 'Regularis martis stellatus' Unnumbered experiment concerning the azure solution formed by mixing the fermentation of urine and copper On the reverse of this is a paper in French and in another hand nd