Hoefer

Rustum YM, Harstrick A, Cao S, Van-hoefer U, Yin MB, Wilke H et al. Thymidylate synthase inhibitors in cancer therapy direct and indirect inhibitors. 

Hoefer, U. Steiner, K. Wagner, E. Contact and sheet resistances of Sn02 thin films from transmission line model measurements. Sensors and Actuators B (1995), p. 59-63. 

Hoefer, U. Bottner, H. Wagner, E. Kohl, C.-D. Highly Sensitive N02 Sensor Device Featuring a JFET-like Transducer Mechanism. Sensors and Actuators B 47 (1-3) (1998), p. 212-216. 

Ulrich Hoefer Steinel Solutions AG Allmeindstr. 10 8840 Einsiedeln Switzerland... 

What kind of experimental evidence could an alchemist furnish in support of his theory of transmutation In answering this question, I cannot do better than give a condensed rendering of certain pages in Hoefer s Histoire de la Chimie. 

Hoefer, F, Nouvelle Biographie Generale, Didot Freres, Paris, 1866. Bio-... 

Sarton, George, Hoefer and Chevreul (with an excursus on creative cen-... 

For authorities on tlio Chemistry of Dioscorides cf. Kopp, Gesehichte der Chemie, 1843 Hoefer, Histoire de la Chimie, Paris, 1842. 

Gmelin20 characterizes Lullus as the weakest (schwachste) of the great medieval authorities from Albert the Great to Arnald of Villanova, crediting him nevertheless with certain observations of chemical nature the greater part of these however, as Hoefer later observed, were not new. 

As a chemist he contributed nothing of note. Hoefer cites a passage from his treatise in Materia Medica, in which he says that saltpeter, (sal petrae) contains a spirit which is of the nature of air and which nevertheless cannot sustain flame, but is rather opposed to it. Though this description would apply to nitrogen, yet as the above statement is accompanied by no further elucidation it seems a rather strained interpretation that nitrogen might have been isolated from saltpeter by Quercetanus.0... 

So also, H. Kopp, two years later,8 evidently depending upon Hoefer says, speaking of hydrogen ... 

R. Jagnaux10 cites Hoefer as to the first observation of hydrogen by Paracelsus, quoting also the above German phrase. 

That Paracelsus mentions it has, indeed, been asserted. Hoefer says in his Histoire de la Chimie, III, 1st ed., p. 15, 2d ed., p. 12. The effervescence which, etc. [as above quoted]. I have, therefore, in my Geschichte der Chernie, III. Theil, S. 260, also stated that Paracelsus had called attention to the evolution of air on the solution of iron in dilute sulphuric acid. The edition of the works of Paracelsus to which Hoefer refers181 cannot now consult, but in... 

The pioneers in the history of chemistry, J. F. Gmelin, Thomas Thomson, Ferdinand Hoefer and Herman Kopp, devoted much able and serious labor to the early developments in the growth of the science. Later historians of the science have laid the emphasis upon the more modern development, and have depended largely upon the earlier histories for their summaries of early chemists. 

A vertical electrophoresis apparatus for a slab gel. Courtesy of Hoefer Pharmacia Biotech, Inc., San Francisco. 

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