It Is Not Only By The Pores

Thus, While I Thought Myself Employed Only In Forming A Nomenclature, And While I Proposed To Myself Nothing More Than To Improve The Chemical Language, My Work Transformed Itself By Degrees, Without My Being Able To Prevent It, Into A Treatise Upon The Elements Of Chemistry.

The Whole Art Of Making Experiments In Chemistry Is Founded On The Principle: We Must Always Suppose An Exact Equality Or Equation Between The Principles Of The Body Examined And Those Of The Products Of Its Analysis.

Diminish The Mass Of Evils That Afflict The Human Species, Increase Enjoyment And Well-being. And Even If The New Routes Opened Up Could Prolong The Average Life Of Mankind By Only A Few Hours, Or Even A Few Days, Then The Scientist, Too Could Aspire.

We May Lay It Down As An Incontestible Axiom, That, In All The Operations Of Art And Nature, Nothing Is Created; An Equal Quantity Of Matter Exists Both Before And After The Experiment; The Quality And Quantity Of The Elements Remain Precisely The Same; And Nothing Takes Place Beyond Changes And Modifications In The Combination Of These Elements. Upon This Principle The Whole Art Of Performing Chemical Experiments Depends: We Must Always Suppose An Exact Equality Between The Elements Of The Body Examined And Those Of The Products Of Its Analysis.

Sulfur, When Burning, Absorbs Oxygen Gas; The Resulting Acid Is Considerably Heavier Than The Sulfur Burned; Its Weight Is Equal To The Sum Of Weights Of The Sulfur Burned And The Oxygen Absorbed.