'Nova methodus pro maximis et minimis' pp 467-473 and one plate (numbered Tab. XII) in Acta Eruditorum Anno MDCLXXXIV. Leipzig, Christopher Günther for J. Gross and J. F. Gleditsch, 1684. This volume of the Acta Eruditorum contains four further first printings of works by Leibnitz: 'De dimensionibus figurarum inveniendis', pp 233-236; 'Demonstrationes novae de resistentia solidorum' pp 319-325; 'Meditationes de cognitiones, veritate, & ideis' pp 537-542; 'Additio ad schedam ... Dimensionibus curvilineorum' pp 585-587.