(Table 1) Helium concentration in sediments

Two decades ago, Merrihue (1964) reported 3He/4He ratios of >10**-4 in ferromagnetic separates from a Pacific deep ocean red clay and concluded that the high ratio is due to extraterrestrial debris amounting to ~1% of the sediment. A decade later Krylov et al. (1973) compiled 3He/4He isotopic data on ocean sediments measured in the Soviet Union and observed that the 3He/4He ratio is generally higher in pelagic sediments where the sedimentation rate is lower. They suggested that the high 3He/4He ratio was attributable to extraterrestrial materials which were concentrated in slowly accumulating ocean floor. However, these important discoveries were almost completely neglected until we re-examined the problem. We have measured 39 sediments from 12 different sites, 10 sites from the western to central Pacific and two sites from the Atlantic Ocean. We find 3He/4He ratios >5 * 10**-5 for six sites, well above the values generally observed in common terrestrial materials. The very high 3He/4He ratio in the sediments is probably due to input of extraterrestrial materials. Input of stratospheric dust of <1 p.p.m., which corresponds to a fallout rate of ~2,000 tons per year, can explain the observation.

Clay minerals in the Norwegian Sea and Fram Strait, investigation from sediment traps and cores

The grain size distribution and clay mineral composition of lithogenic particles of ice-rafted material, sinking matter, surface sediments, as well as from deep-sea cores are analysed. The samples were collected in the Fram Strait, the Arctic Ocean, and the Norwegian Sea during several expeditions with the research vessels "Polarstern", "Meteor" and "Poseidon", and Norwegian rearch vessels. Sinking matter was caught with sediment traps, fitted with timer-controlled sample changers, which had been deployde in the sea for usually one year.

Memorias.

Some monographs also bound in signatures with v. 3-18.

"Literary development of cooperative principles and data" /

Series "A" pt. 1: 2d ed.

Mitchell's school atlas

Map no. 12 (Great Britain and Ireland)--and no. 13 (Germany, Switzerland and Northern Italy): "Entered, according to Act of Congress, in the year 1840 ..." Cover and all others maps "Entered according ... 1839."

Segunda patria /

Contiene : Parte primera, segunda y tercera, cada una con port. y paginación propia.

El esfinge de los hielos /

Contiene : Parte primera, segunda y tercera, cada una con port. y paginación propia.

Oeuvres complètes de Shakspeare [sic] /

Contiene: t. 3.

Egyetemes philologiai közlöny.

At head of cover, évf. 59-71: Archivum philologicum.

Manuale di legislazione della colonia Eritrea ...

At head of title: Manuali coloniali. Pubblicati a cura del Ministero delle colonie. Prof. Angiolo Mori, regio agente coloniale della Somalia italiana ...

Théatre de feu Monsieur Boursault.

"De l'imprimerie de Quillau, 1746": v. 1, p. 542; "De l'imprimerie de Quillau, Pere, 1745": v. 3, P. 535.

Saggio di leggende storiche italiane : in ottava rima.

"All'inclita signore, Elvira Rossi nata Giampieri in [aderpato?] di pirna, e di fighale affecto, Olivo [Gabanti?]" inscribed on the recto of the front fly-leaf.

The works of Francis Bacon, Baron of Verulam, Viscount St. Alban, and Lord High Chancellor of England /

Includes index.