Introduction to Botany by Joseph Young Bergen and Otis William Caldwell tracks perfectly with the plant section of our free nature studies! This free eBook is targeted at older students. So whether you are looking for interesting diagrams and illustrations (and an explanation of more difficult concepts for your own benefit) or are including an older student in your nature studies, you will find this one an excellent help!
The object here sought is to present in a short course that kind of botanical knowledge which will especially interest the average secondary-school pupil, and which will be of most service to him as a means of education. Along with this training a good deal of other knowledge is presented, which should remain as a valued acquisition throughout the student’s after life — knowledge of forest, field, wayside, farm, orchard, garden, and the industries.
“After life,” of course, referring to his continuing education as a lifelong learner!
Among those topics covered are:
The plant classification system is also presented along with an extensive glossary.
At the end of each chapter are ten or so “problem” questions. These can be used to provide either an oral or written narration depending on the age of your student.
1. Which are greener, leaves which are densely shaded or those which are exposed to the sun? What makes the difference?
2. Will alcohol dissolve the chlorophyll more quickly from densely shaded or from openly exposed leaves? Why?
3. Under what conditions could a field of corn lose water to the soil instead of securing water from the soil?
4. What would be the effect upon animal life if green plants should manufacture no more food than they consume in their own growth?
5. Leaves often give a strong, starch reaction in the late afternoon and none in the early morning. Can you account for this?
6. It was found by some students that a corn plant elongates about four times as much between 6 p.m. and 6 a.m. as between 6 a.m. and 6 p.m. Can you account for this fact?
7. Fields of grain are often more or less wilted at noon on hot summer days and regain their turgor at night even when no rain has fallen. Can you account for this fact?
One of the best features of Introduction to Botany is the numerous illustrations and diagrams. A tutor’s treasure trove!
One note: The authors give an excessively glowing review of Darwin’s work — a great deal of which has at this point been either called into question or debunked altogether. This shortcoming should not prevent the book from still being put to good use.
Great introduction to the inner workings of plants — and free!