Unpublished paper, 'On the calculation of the trajectories of shot' by W D [William Davidson] Niven Niven provides an overview of existing methods and theories surrounding the calculation of the trajectories of shot, suggesting that ' the problem of integrating the equations of motion of the shot and of plotting-out a representation of the curve described by it is peculiar'. Note on front reads 'Portion of paper not printed see Proc vol 26 p268'. Subject: Mathematics / Mechanics Read 11 May 1876. Communicated by James Clerk Maxwell. A version of this paper was published in volume 26 of the Proceedings of the Royal Society as 'On the calculation of the trajectories of shot'. 1876