Add punctuation: When we see buildings houses machines tools means of transport and so on they constitute as I have mentioned previously only copies of their originators inner mental images produced in physical matter
A: When we see buildings, houses, machines, tools, means of transport and so on, they constitute, as I have mentioned previously, only copies of their originator's inner mental images produced in physical matter.

Add punctuation: This answered questions of Leibniz and Euler and followed results obtained by Hardy and Ramanujan Rademacher also wrote important papers on Dedekind sums and investigated many problems relating to algebraic number fields
A: This answered questions of Leibniz and Euler and followed results obtained by Hardy and Ramanujan . Rademacher also wrote important papers on Dedekind sums and investigated many problems relating to algebraic number fields.

Add punctuation: D8 Adj for the chg in net equity of hholds in pens funds reserves exp
A:
D.8 Adj. for the chg. in net equity of h.holds in pens. funds reserves, exp.