Reversing sign ascertaining if a variable is zero, ascertaining if a variable has a + or - sign (supersedes 223).
Corrected printed proofs and sheets of lists in H.P. Babbage's 'Calculating Engines', enclosed in a manuscript cover. It includes a manuscript list of tool drawings.
Steps of the trains in one barrel in group "F and I during operations in the mill and during subsidiary operations in the store.
Duties of the mill counting apparatus which require the cycle of a(=12) units for Plan 28a. Sheet 2 of 2.
Reduction of three simultaneous equations in three variables to two simultaneous equations in two variables
First sketch of all the parts in plan of the right half to middle group of General Plan 28. Plan, elevation.