“We may fairly judge of the commercial prosperity of a country from the amount of sulphuric acid it consumes.” MayCountryScienceNationsJudgingAmountProsperityAcid Book:Familiar Letters on Chemistry, and its relation to Commerce, Physiology, and Agriculture: Edited by John Gardner Source: Familiar Letters on Chemistry, and its relation to Commerce, Physiology, and Agriculture: Edited by John Gardner
“A people without children would face a hopeless future; a country without trees is almost as helpless.” PeopleChildrenCountryFacesScienceTreeFutureForestsHopelessHelplessForests And TreesArbor Day Author:Theodore Roosevelt