The Former Conviction That These Two Kingdoms

This View, As A Rounded Whole And In All Its Essential Elements, Has Very Recently Disappeared From Science. It Died A Royal Death With Agassiz.

I Am Sufficiently Convinced Already That The Members Of A Profession Know Their Own Calling Better Than Anyone Else Can Know It.

Next It Was Found That It Was Physiologically And Structurally The Same In The Plant, That It Was The Living Part Of The Plant, That Which Manifested The Life And Did The Work In Vegetable As Well As In Animal Organisms.

Many Years Ago It Was Taught That Plants And Animals Were Composed Of Different Materials: Plants, Of A Chemical Substance Of Three Elements,- Carbon, Hydrogen, And Oxygen; Animals Of One Of Four Elements, Nitrogen Being Added To The Other Three.

Indeed Upon Much That May Have To Say, I Expect Rather The Charitable Judgment Than The Full Assent Of Those Whose Approbation I Could Most Wish To Win.