Trees Of The Northern United States Their Study Description And

First read _all_ the statements following the stars (*) at the beginning of the Key; decide which one of the statements best suits the specimen you have. At the end of the chose...

All pupils should be required to write some form of composition on the trees of the region. As far as possible, these compositions should be the result of personal investigation...

Leaves are the lungs of plants. The food taken in by the roots has to pass through the stem to the leaves to be acted upon by the air, before it becomes sap and is fit to be use...

The stem is the distinguishing characteristic of trees, separating them from all other groups of plants. Although in the region covered by this book the trees include all the ve...

Many of the peculiarities of trees can be studied much better during the winter and early spring than at any other time of the year. The plan of branching, the position, number,...

The author hopes that those who use this work in studying trees will become so much interested in the subject of Botany as to desire more information concerning the growth and r...

Three specimens are needed of each kind of tree: one, a branch showing the flowers; another, showing the fruit--one of these, and in many cases both, will show the leaves. The t...

The great office of the roots of all plants is the taking in of food from the soil. Thick or fleshy roots, such as the radish, are stocks of food prepared for the future growth...