n a knowledgeof the real merits of the case. We reproduce the indicator diagrams here to exhibit thefact that it requires something more than an effective valvegear to secure good economical results.and that the beauti-ful card is no evidence of the adaptation of an engine toits work. The steam… … 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.
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