Notes et informations

Abstract

Mon ami, le Dr Marcel Couturier, lors de la dissection d'un Lagopède : Lagopus mutus helveticus (Thienemann 1829) (Fam. Tetraonidae) ♂, tué à Laurichard (Hautes-Alpes) (11 septembre 1947), trouva des Filaires dans la cavité générale ; il ne réussit pas à les obtenir en entier. Le maté riel récolté, mis aimablement à ma disposition, était en médiocre état, et consistait en deux extrémités antérieures et deux fragments (longs res pectivement de 51 et 58 mm.), pourvus de l'extrémité postérieure. Il s'agit de ♂ de D iplotriaena.

7. The Physical basis of the Polarimetri Method for Deriving Asteroid Albedos

“…The second-order scattering that I refer to above (with Fig. 1) is substantiated by Dollfus(1956) in an experiment which produced negative polarization for a powdered surface sample, while the negative polarization disappeared when these same dust particles were separated widely (when falling through the air).…”

Structure of the Moon's surface and investigation of the first photographs of its far side

“…The polarization data obtained by Dollfus (2), namely, that all regions of the moon behave as though covered with dust, can be reconciled with the reindeer moss type of model if we assume that cold welding phenomena take place readily on the moon; in fact, it is the reviewer's opinion that the dendritic or coralline accretions, whatever they may resemble, actually may have been built up from small fragments and * See footnote 4 to N. P. Barabashov's present paper. dust particles projected through the primary agency of the impact of micrometeorites.…”

“…A number of people in this country have undertaken similar investigations, e.g., Simpson (1), Gold (2), and many others, based on other concepts of interplanetary fields.…”

“…Dollfus (2) assumes that the entire moon is covered by volcanic ashes of varying luminosity, consisting of manysized grains. This difference in luminosity and grain size is also the cause of difference in the luminosity of lunar formations.…”

16. Commission Pour L’Etude Physique des Planetes et des Satellites

“…A. Dollfus [104] made polarimetric and photometric observations with the coronograph which enabled him to put an upper limit of io -1 0 terrestrial atm. for a possible lunar atmosphere.…”