THE advocates of an exclusively experimental course of study in the natural sciences are confronted with the difficulty of time limitations, so that in practice it becomes necessary to strike a ...

https://siris-libraries.si.edu/ipac20/ipac.jsp?&profile=liball&source=~!silibraries&uri=full=3100001~!32321~!0#focus ...

FOR a laboratory manual this book is of great extent, for it includes more than 500 octavo pages, with no less than 87 plates. Yet it is more remarkable for what is omitted than for what is contained ...

This is a preview. Log in through your library . Journal Information Rhodora is a peer-reviewed journal of botany devoted primarily to the flora of North America. Monographs or scientific papers and ...