608 Chemisches, etc. - Biographisches. - Personalnachrichten. 
Humphries, A. E., Bread. (Science Progress. Vol. II. p. 175—190. 
1907.) 
The only cereals empioyed for making bread are wheat and 
rye; the cultivation of the latter is practically confined to Europe. 
The cereals yield flours very similar in Chemical composition but 
doughs made from them are unsuitable from lacking the power of 
retaining gas. The power of retaining the gas is associated with the 
presence of considerable percentage of gliadin. 
The methods of aerating dough are discussed, and the best 
results stated to be obtained by the use of modern high dass yeasts. 
“Strength” of flour has been ascribed to a good or high nitrogen 
content, and to the percentage of gliadin to glutenin. These views 
no longer hold, and Prof. T. B. Wood is quoted to the effect that 
the difference between “strong” an “weak” flours is connected 
rather with the physical properties of their gluten than with their 
Chemical composition and that the size of a loaf depends in the first 
instance on the amount of sugar contained in the flour together 
with that formed in the dough by diastatic action. 
W. G. Free man. 
Sehaerges, C., Ueber Secornin (Ergotin Keller) und die wirk¬ 
samen Bestandteile des Mutterkorns. (Schweiz. Wschr. Chem. 
u. Pharm. XLIII. 46. p. 630—635. 1905.) 
On trouve dans le sclerote de Secale cornutum les substances 
actives suivantes: l’acide ergotique; l’acide sphacelinique; la cornu- 
tine, sous forme d’ergotinine; la secaline unie ä la sphacelotoxine 
sous forme de secalinetoxine; la spasmotine; la chrysotoxine (combi- 
naison de sphacelotoxine et d’ergochrysine); la secalinetoxine; puis 
deux bases sans importance; la vernine et la choline, enfin la clavine. 
M. Boubier. 
Rendle, A. B., Memorials of Linnaeus. (British Museum Natural 
History. Special Guides. No. 3. London, 1907. Price 3 d.) 
This guide has been prepared to accompany an exhibition of 
portraits, autograph letters and manuscripts, specimens and books 
arranged in the great Hall at the Natural History Museum in 
commemoration of the bicentenary of th ;rth of Linnaeus. It 
includes photographic reproductions of the portrait of Linnaeus by 
Per Krafft at the Royal Swedish Academy of Sciences, Stockholm, 
and of the well known portrait in Lapland dress by M. Hoffman. 
A. B. Rendle. 
Personalnaehrichten. 
Le III 6 Congres des Jardins alpins qui devait avoir lieu en 
France au Col du Lautaret (Hautes-Alpes) en 1908 est renvoye 
ä une date ulterieure. 
Ausgegeben i 0 Juni 1908. 
Verlag von Gustav Fischer in Jena. 
Buchdruckerei A. W. Sijthoff in Leiden. 
