Diagrams relating to John Wallis's review of Nicolas Mercator's Logarithmotechnia
                                Date
                            
                            
                                1668
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Unknown, Artist
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                p86
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (paper): 365mm
width (paper): 229mm
                            
                        
                            
                            
                            width (paper): 229mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                The first diagram relates to John Wallis's paper commenting on  Nicolas Mercator's Logarithmotechnia in his letter to Henry Oldenburg dated 8 July 1668 (EL/W1/50/003), read to the Royal Society on 16 July 1668. 
The second diagram illustrates Wallis's method of finding the sums of logarithms, from his letter to William Brouncker dated 5 August 1668 (EL/W1/59/002).
Both were printed as part of John Wallis's review of Nicolas Mercator's Logarithmotechnia in Philosophical Transactions, vol. 3, no. 38 (August 1668).
These were copied from RBO/4/005.
                            
                            
                        
                            
                            
                            The second diagram illustrates Wallis's method of finding the sums of logarithms, from his letter to William Brouncker dated 5 August 1668 (EL/W1/59/002).
Both were printed as part of John Wallis's review of Nicolas Mercator's Logarithmotechnia in Philosophical Transactions, vol. 3, no. 38 (August 1668).
These were copied from RBO/4/005.
                                Object history
                            
                            
                                At the meeting of the Royal Society on 16 July 1668, ‘Mr. Oldenburg produced a paper in Latin of Dr. Wallis, dated at Oxford July 8, 1668, commending Mr. Nicholas Mercator’s Logarithmo-technia, lately printed, and making the quadrature of the hyperbola universal to all hyperbolas, with a desire, that since by this means the quadrature of the hyperbola was now so complete, as that scarce a better could be expected, and this work perfected by members of the society, this letter might be entered in their Register-Book, the more effectual to declare the invention their’s [sic]. It was read, and ordered to be registered accordingly' (Birch 2:306).
Printed in John Wallis, 'Review (July 1668) of Logarithmotechnia Nicolai Mercatoris, and his own demonstration of infinite series', Phil. Trans. vol. 3, no. 38 (August 1668), pp. 753-64, with woodcut diagrams at p. 756.
                            
                        
                            
                            
                            Printed in John Wallis, 'Review (July 1668) of Logarithmotechnia Nicolai Mercatoris, and his own demonstration of infinite series', Phil. Trans. vol. 3, no. 38 (August 1668), pp. 753-64, with woodcut diagrams at p. 756.
                                Related fellows
                            
                            
                                John Wallis (1650, British) , Mathematician
William Brouncker, 2nd Viscount Brouncker of Lyons (1620 - 1684, British) , Mathematician
                            
                        
                            
                            
                            William Brouncker, 2nd Viscount Brouncker of Lyons (1620 - 1684, British) , Mathematician
                                Associated place