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Updated: May 17, 2025
Nägeli was very capable in teaching music and singing, and in representing their function as inspiring aids to pure human life; and although nearly twenty years have elapsed since I heard those lessons of his, the fire of the love for music which they kindled burns yet, active for good, within my breast.
Dr. Brukner has contributed to the Proceedings of the Vienna Academy of Sciences a paper on the "Chemical Nature of the Different Varieties of Starch," especially in reference to the question whether the granulose of Nageli, the soluble starch of Jessen, the amylodextrin of W. Nageli, and the amidulin of Nasse are the same or different substances.
In his concluding chapter, after a discussion of the theories of Darwin, Nägeli, and Weismann, he postulates, for variation, heredity, and species-formation in particular, “forces other than physico-chemical,” “let us call them frankly psychical.” A very fresh and lucid presentation of the whole case is given by Borodin, Professor of Botany in St.
Between these two alternatives, many writers have tried to decide, by transplanting their specimens after some time in the garden, into arid or sandy soil, in order to see whether they would resume their alpine character. Among the systematists who tested plants in this way, Nageli especially, directed his attention to the hawkweeds or Hieracium.
Descriptions were formerly difficult and so complicated that the ablest writers on this genus, Fries and Nageli are said not to have been able to recognize the separate species by the descriptions given by each other. Are these types to be considered as elementary species, or only as individual differences? The decision of course, would depend upon their behavior in cultures.
Passing now to singing and music, it happened very luckily for me that just at this time Nägeli and Pfeifer brought out their "Treatise on the Construction of a Musical Course according to the Principles of Pestalozzi."
Theory of Definite Variation. But the question now arises, whether both Darwinism and Lamarckism must not be replaced, or at least reduced to the level of accessory theories and factors, by another theory of evolution which was in the field before Darwin, and which since his time has been advanced anew, especially by Nägeli, and has now many adherents who support it in whole or in part.
Another difference maintained by Nageli, that freshly precipitated starch is insoluble, amylodextrin soluble in water, is also contested; the author finding that granulose is soluble to a considerable extent in water, not only immediately after precipitation, but when it has remained for twenty-four hours under absolute alcohol.
However, even this is questioned by some scientific men of eminence, and we come to the third view. Professor Nageli, a distinguished botanist, and Professor Haeckel, maintain that our experience, as well as the range of our microscopes, is too limited to justify the current axiom. They believe that life may be evolving constantly from inorganic matter.
Presently it came to be known, through the labors of Kolliker, Nageli, Bischoff, and various others, that there are numerous lower forms of animal life which seem to be composed of this sarcode, without any cell wall whatever. The same thing seemed to be true of certain cells of higher organisms, as the blood corpuscles.
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