Excerpt from Laboratory and Field, Manual of Botany
This manual offers material for much more than a year's laboratory work. This is made necessary by the fact that instructors differ widely in their views as to what matter should be presented in an introductory course under the variety of conditions obtaining where botany is taught. A course must necessarily be framed selectively, and the chief alternatives are discussed in the opening paragraphs of the Introduction.
The authors fully recognize the fact that no set of directions of only moderate fullness can tell the student all that he needs to know about choice of material, apparatus, and manipulation. It is assumed that much is left to be explained by the instructor, and constant mention is made of general and special laboratory guides which may be consulted for needed details.
The student in the laboratory is not to consider himself as merely the corroborator of facts already ascertained: he is to interrogate mainly not the instructor, not the mannal, but the plant itself. The directions here given are, therefore, for the most part suggestions on methods of procedure and indications as to the plants or parts of plants in which to look for desired information.
Since the amount of ground that can be covered by laboratory divisions varies so largely with many circumstances, it has seemed desirable to designate two courses, a briefer and a fuller one. The matter which may be omitted from the latter to frame the shorter course is printed in smaller type and consists in the main of rather more difficult or detailed studies than those which appear in the larger type.
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