Excerpt from Laboratory Manual, Arranged to Accompany: Second Edition of a Course Every well - ordered laboratory has its own system of sup plies, stock solutions, desk reagents, and locker equipment, and the directions in a manual will not always harmonize with this system. For example, in many cases in which the student is directed to prepare solutions or mixtures for specific purposes, it may be much better to have a supply on the side shelf, properly labeled, for general use. In a number of experiments, particularly those involving appa ratus that is not a part of the locker equipment, two or even more students may work together to advantage. The time at the disposal of the class will not always permit each student to complete all of the exercises, and variety is added by assigning parallel experiments to alternate students. All such adjustments are left to the instructor. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.

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