The most important task of the analytical chemist, aside from the acquisition of experimental data, is the coordination and interpretation of such data in terms of the qualitative and quantitative composition of the test substance. As in the old tale of the blind men and the elephant, a single observation or test, not considered in conjunction with others, may lead to entirely erroneous conclusions. On the other hand, mere in crease in the number of such tests, without regard to their need or to their relationship to each other, also may not suffice for drawing the correct inferences from the...
The most important task of the analytical chemist, aside from the acquisition of experimental data, is the coordination and interpretation of such dat...
In the course of the years since H. D. SCHMIDT, in 1895, describcd his "microscopic dissector," a mechanical device for dissecting and study ing biological materials, a great wealth of information has been pub lished in the scientific and technical literature on methods involving the use of exceedingly delicate microtools mechanically guided under microscopic control for the investigation of microscopic structures and very small amounts of material.. The operative tools used can be moved with considerable precision under various microscopic magnifications to perform the required tasks. With...
In the course of the years since H. D. SCHMIDT, in 1895, describcd his "microscopic dissector," a mechanical device for dissecting and study ing biolo...
