Licht- und elektronenmikroskopische Befunde an den Geschmacksknospen der Axolotlzunge

Summary The investigation of the taste buds in the tongue of the neotene Mexican axolotl (Siredon mexicanum) by light and electron microscopy demonstrates 4 different cell types: 1) R-cells, marginal cells of less differentiated character. 2) G-cells, granulated cells in basal position. 3) Cells of type A with fibrills, vesicular elements, and dark bodies, showing supporting and secretory function. 4) Cells of type B with an agranular endoplasmic reticulum in stripe like arrangement, supposed to be receptor cells.     

Rocket UV flash spectra from the solar eclipse of March 7, 1970

Flash spectra of the total solar eclipse throughout all its phases have been obtained in the extreme ultraviolet for the first time.     

Comparison of the localization of several muscle proteins in relaxed and contracted myofibrils.

The localization of several muscle proteins in relaxed and contracted myofibrils is compared. The morphology of the myofibrils and the behavior of these proteins was also investigated under extraction conditions.     

Molekulargewichtsbestimmung von Kalbsherzmyosin

Summary Sedimentation and diffusion coefficients, partial specific volume, intrinsic viscosity, ATP-ase activity and molecular weight of cardiac myosin from calf hearts were determined. The values agree well with the results ofMueller et al.⁴ for cardiac myosin of the dog, and are not essentially different from values reported for skeletal myosins.¹      

On the prevention of loss of RNA into lipid solvents

Résumé La perte de RNA dans les solvants tels que l'éthanol et l'acétone, au cours de la délipidation des nucléoprotéines précipitées par l'acide, peut être évitée en traitant le précipité (obtenu à une concentration quelconque d'acide trichloracétique) par le dioxane avant d'extraire avec les autres solvants délipidants usuels.