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18. How many cubic feet, per minute it took
in 1842 &c [etc] to drive one run of stones, with machinery &
19. How many to drive a saw mill saw
20 How many a gang of saws
21 What width of gauge at 6 in depth &c would it take
to propel all with accumulated machinery &c in cases specified
22 how many bushels an hour did run of stone
grind in 1842 7 how many now? - (Poertner
says with 8 ft gauge he can grind 18 bushels)
23. How many bushels per hour does Sawyer
Bertschy Sanderson grind with one run of stones
24. What did they grind per hour at Rochester, Lockport,
& Oswego in 1842-3-4 per run. What was
then the general custom & what now, as to
rapidity of grinding.
25 What wier did they draw water over for one saw
- same for gang of saws - did they put in a
gang of saws.