Eighth, ninth, and tenth annual reports from Prof. John Collett. - Under the lead of Prof. E. T. Cox, the survey of Indiana progresses very satisfactorily. There is one feature especially valuable in Prof. Cox's reports: be not merely notes what is found beneath the surface, but what is on it likewise, and hence Botany has some consideration as well as other branches of science. It is strange that this branch of science should ever be neglected by any State survey - but it sometimes is. In this particular volume we have a catalogue of all the ligneous plants of the United States, so that those into whose hands the report may fall can check off those which are indigenous to the State. This is an excellent idea, and must result in a very complete catalogue of Indiana trees and shrubs, and with their geographical ranges.