GuilHenrde Vriese Protrepticus ad commilitones, Athenaei Illustris Amstelodemensis alumnos, quo scholas botanicas, die Vante idus Octobres, MDCCCXLI, publice instauravit . maybe said to be to some extent a representative of the modern ideal-istic school with which Braun, his old teacher, was work, however, resembles that of the idealists only so far asto exhibit the immense value of comprehensive discussions of theresults of careful inductive inquiry, not only in the establishment 22 BOTANIC OARDENS. of individual facts, but in the employment of these facts in theirrelations to


GuilHenrde Vriese Protrepticus ad commilitones, Athenaei Illustris Amstelodemensis alumnos, quo scholas botanicas, die Vante idus Octobres, MDCCCXLI, publice instauravit . maybe said to be to some extent a representative of the modern ideal-istic school with which Braun, his old teacher, was work, however, resembles that of the idealists only so far asto exhibit the immense value of comprehensive discussions of theresults of careful inductive inquiry, not only in the establishment 22 BOTANIC OARDENS. of individual facts, but in the employment of these facts in theirrelations to the most general notions and their capabilities for thefoundation of new and more comprehensive theories—a method ofinvestigation productive of the highest results in all departmentsof biological science. One of the conclusions reached in this man-ner, which asserts the polarity of the plant cell, is at presentbeyond the general level of the subject. Polarity will doubtlessbe recognized as one of the most important physiological proper-ties of protoplasm when the advance of the subject makes its ap-preciation possible. The researches of Vochting have dealt prin-. Tiie Botaxic Institcte, View from a photolitbograph, by perrnission. cipally with the physiology of movement and what might brieflybe termed physiological morphology. The garden is located in the northeastern part of Tiibingen inwestern Wurtemberg. It lies at an elevation of about one thou-sand feet, on the plateau encircled by the Schwarzwald, in latitude48° 30 north. Near it are hills covered with forests of pine, whichrise two hundred and fifty to three hundred feet above it, while tothe southward, twenty miles away, the Swabian Alps reach to aheight of twenty-five hundred feet, in consequence of which thenight temperature falls far below that of the day. A low win-ter temperature of —30° C, and a summer limit of 25° to 28° C,help to make a climate which resembles that of southern Michig


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Keywords: ., bookcentury1800, bookdecade1840, booksubjectbotany, bookyear1841