School Yourself To Demureness And

The Sun-paul Must Consider Only One Thing: What Is The Relation Of This Or That External Reaction Of The Animal To The Phenomena Of The External World?

While You Are Experimenting, Do Not Remain Content With The Surface Of Things.

Don't Become A Mere Recorder Of Facts, But Try To Penetrate The Mystery Of Their Origin.

Finally, As The Digestive Canal Is A Complex System, A Series Of Separate Chemical Laboratories, I Cut The Connections Between Them In Order To Investigate The Course Of Phenomena In Each Particular Laboratory; Thus I Resolved The Digestive Canal Into Several Separate Parts.

The Digestive Canal Is In Its Task A Complete Chemical Factory. The Raw Material Passes Through A Long Series Of Institutions In Which It Is Subjected To Certain Mechanical And, Mainly, Chemical Processing, And Then, Through Innumerable Side-streets, It Is Brought Into The Depot Of The Body. Aside From This Basic Series Of Institutions, Along Which The Raw Material Moves, There Is A Series Of Lateral Chemical Manufactories, Which Prepare Certain Reagents For The Appropriate Processing Of The Raw Material.