John B. Henck
(20 Oct 1815 - 3 Jan 1903)
Science Quotes by John B. Henck (1 quote)
Henck's Field-Book for Railway Engineers (source)
Rules can seldom be safely applied without a clear understanding of the principles on which they rest.
— John B. Henck
- Field-Book for Railroad Engineers, by John B. Henck. - book suggestion.