counted on the fingers, and we are always distrustful ofthose who are most confident of their own powers as de-signers of steam engines. In Fig. 1, we have copied the steam cylinder and pumpcards of the Corliss, and in Fig. 2, those of the Worth-ington engine. … problem of designing a good engine for any special purposeis still the most important and most difficult presented tothe engineer; and we doubt if one in a hundred of those whoattempt it are capable of doing creditable work. Indeed webelieve that the number of engineers who are really familiarwith…
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