(Table 19, page 199) Minor constituents of one of the San Clemente iron concretions and its metallic core

The chemical and mineralogical composition of pelagic sediments from the East Pacific Ocean has been determined with the aim of defining the ultimate sources and the mechanisms of formation of the solid phases. The distribution of elements between sea-water, the pore solution and the various solid components of the sediments permits interpretations of the variations in time and space of the gross chemical composition of pelagic clays. For example, manganese, present in sea-water in a divalent form, is apparently oxidized at the sediment-water interface to tetravalent species which subsequently become a part of the group of ferromanganese oxide minerals which are found in the marine environment. It is suggested the rate of manganese accumulation in sediments is some function of the length of time the sediment surface is in contact with sea-water. The contribution of chemical species from the different geospheres is considered. The quantitative importance of pelagic clays in the major sedimentary cycle is studied on the basis of the distribution of the weathered igneous rock products between continental and pelagic deposits and sea-water. These analyses of a wide variety of pelagic clays allow a reformulation of the geochemical balance and it is concluded that pelagic clays account for approximately 13 per cent of the total mass of sediments produced over geologic time.

Akbar, mounted on Hawa’i, pursuing Ran Bagha across a bridge of boats over the River Jumna which collapses under the weight of the elephants, page 21, from the Akbarnama

1 ft. 63/64 in. x 7 7/8 in.; opaque watercolor and gold on paper

Page from the Ishiyama-gire

Painting, Japanese, Fujiwara; 4 ft. 3 57/64 in.x 1 ft. 5 21/64 in.; album leaf, nk on assembled dyed paper decorated with silver and gold

Qur'an page in Kufic script

Manuscript, Islamic, Abbasid; 4 1/64 in.x 6 47/64 in.; ink, opaque watercolor, and gold on parchment

Exploratory diamond drilling in the No Name Canyon Area, White Canyon District, San Juan County, Utah /

"January 1958."

The best books: a reader's guide to the choice of the best available books (about 100,000) in every department of science, art, and literature, with the dates of the first and last editions, and the prize, size and publisher's name (both English and American) of each book; a contribution towards systematic bibliography,

None of the American edition published after part 4. Parts 5 and 6 have imprinted: London, G, Routledge and sond, limited, 1931-35.

Meisho Edo Hyakkei, title page

Ando Hiroshige; woodcut (Oban)

A detail plan for the swimming pool on the estate of Mr. Joy Morton. Du Page County, Illinois.

Red, black ink on linen; signed. 116x66 cm. Scales vary [from photographic copy by Lance Burgharrdt]