Ueber Diamido-guanidin

Hippokrates Ueber die Krankheiten III

irrelevant. Chemistry and the relations between science, technology, and industry are well surveyed by Crosland and Cardwell respectively. Forbes's essay on mathematical cosmography is not a comprehensive account but the story (albeit interesting) of a few German cartographers. Compared with other recent collections of essays in the history of science, this volume parades no party line: witness...

Ueber Das Verschwinden Der Θ-functionen

Ueber Die Fortpflanzung Ebener Luftwellen Von Endlicher Schwingungsweite

[Aus dem achten Bande der Abhandlungen der Königlichen Gesellschaft der Wissenschaften zu Göttingen. 1860.]

2-(1,3-Benzothia­zol-2-yl)guanidin-2-ium acetate

In the title compound, C(8)H(9)N(4)S(-)·C(2)H(3)O(2) (-), the cation is essentially planar (r.m.s deviation = 0.037 Å) with the guanidine unit bent out of the plane of the fused-ring system by 4.6 (3)°. In the asymmetric unit, the cations and anions are linked into R(2) (2)(8) motifs. In the crystal, further N-H⋯O and N-H⋯N hydrogen bonds link the components into a two-dimensional network.

Ueber Die Fläche Vom Kleinsten Inhalt Bei Gegebener Begrenzung