R Institution | Sept 19th 1832
Dear Sir
I dare say you know of the two following errors if errors they are but as you said you were about a second edition1 I thought I would mention them[.]
Page 68 (90)2. The hole passing to the bowl is formed I believe in a very curious manner after the clay is taken out of the mold & whilst held between the fingers[.]
Page 133 (161)3 with regard to the waste. If an art include ten processes and is to be practised by ten men and if each man learns all the processes there will be a hundred wastings but if each man learns a particular process only, there will be but ten wastings - the quantity of waste therefore cannot remain the same[.]
Perhaps however I have misunderstood your meaning but I am sure you will excuse me[.]
I am dear Sir | Very Truly Yours | M. Faraday
C. Babbage | &c &c &c
BABBAGE, Charles (1832a): On the Economy of Machinery and Manufactures, London.
BABBAGE, Charles (1832b): On the Economy of Machinery and Manufactures, 2nd edition, London.
Please cite as “Faraday0616,” in Ɛpsilon: The Michael Faraday Collection accessed on