Figure 1: Basic compound microscope: Light from a source is focused onto the sample (object) using a mirror and condenser lens. Light from the sample is collected by an objective, forming an ...
THE author of this convenient and systematic little treatise is Demonstrator of geology in the Imperial College of Science, London, where he has gained experience through the introduction of large I ...
This is a preliminary report and outline of the forms to be included in a comprehensive study of various spores and pollen grains from Carboniferous fructifications. A large number of reproductive ...
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