[Pg 47]: counter shafts altered to countershafts. "intermediate or countershafts, the expense"

[Pg 57]: breaks altered to brakes. "to operate railway brakes?"

[Pg 59]: separated altered to separate "The employment of magnetic machines to separate iron and brass filings or shop waste"

[Pg 60]: (4.) was retained as the question seems to be included after (3.)

[Pg 62]: breaks altered to brakes "operated by friction brakes"

[Pg 64]: kind altered to kinds "in high buildings for most kinds of manufacture"

[Pg 97]: preventing altered to prevent "to prevent the springing of castings."

[Pg 100]: Number of Question (8.) was missing. Questions renumbered according to the other blocks of questions.

[Pg 120]: adapation altered to adaptation. "but they are by such adaptation unfitted for general purposes."

[Pg 151]: does altered to do "In what way do standard dimensions"