Optimum Nutrient Solutions for Plants

Abstract

In recognition of the fact that the progress of astronomy in America has made magnifi- cent contributions to that science, it is befitting that we should find in the oldest school for astronomical graduate work a course per- taining to the history of astronomy in Amer- ica.The TDetroit Observatory of the Univer- sity of Michigan has in itself a wonderful history, in respect to training astronomers who have all been leaders in astronomical research.Dr. W. Carl Rufus's work in the history of astronomy consists of two courses-the first being the general history of astronomy and the second following with the history of astronomy in America.The second course is of particular interest to us now, since it is building the framework upon which the his- tory of science in America must rest.A cooperative course in the history of sci- ence is now being offered for the first time at the Northwestern University.It is given in two divisions, namely: the history of the physical sciences, given by Dr. Henry Crew, and the history of the biological sciences, by Dr. William A. Locy.We may venture here to state that