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