Description and chemical composition of ferromanganese nodules from Station 123, Oneida Lake, New York

226Ra is used to document the growth histories of six manganese nodules from Oneida Lake, New York. Detailed sectioning and analysis reveal that there are discontinuous gradients in 226Ra content in these samples. These gradients result from periods of rapid growth (>1 mm/100 years) separated by periods of no growth of erosion. Although the 226Ra 'age' of the nodules approximates the age of Oneida Lake, the nodules are not sediment-covered because they occur only in areas of the lake where fine-grained sediments are not accumulating.

Description and chemical composition of ferromanganese deposits from Oneida Lake, New York

Saucer-shaped iron-manganese crusts occur adjacent to gravel shoal areas in Oneida lake in central New York. The crusts usually have a crude concentric banding owing to an alternation of orange, iron-rich layers and black, iron-poor layers. Materials from both types of layers are x-ray amorphous. The Oneida lake crusts, like most other freshwater manganese nodules, contain about the same Mn concentration as marine manganese nodules, but are usually higher in Fe and lower in trace metals than their marine equivalents. Although Fe and Mn may be precipitating directly from the lake water, it is more likely that the oxidate crusts are the result of precipitation of Fe and Mn when reduced sediment pore water comes in contact with well oxygenated bottom waters. Organisms, particularly bacteria, may play a role in the formation of the crusts, but to date no evidence of this has been found.

Narrative of the voyage of H.M.S. Rattlesnake, commanded by the late Captain Owen Stanley during the years 1846-50, including discoveries and surveys in New Guinea, the Louisiade Archipelago, etc : to which is added Mr. E.B. Kennedy's expedition for the exploration of the Cape York Peninsula / by John Macgillivray.

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Description and evaluation of the public information and education countermeasure of the New Hampshire Alcohol Safety Action Project. Final report.

National Highway Traffic Safety Administration, Office of Driver and Pedestrian Programs, Washington, D.C.

Astronomical and geographical essays: containing, I. A ... view, on a new plan, of the general principles of astronomy. II. The use of the celestial and terrestrial globes ... III. The description and use of the most improved planetarium, tellurian, and lunarium. IV. An introduction to practical astronomy.

Tailpiece.

The Jesuit relations and allied documents; travels and explorations of the Jesuit missionaries in New France, 1610-1791; the original French, Latin, and Italian texts, with English translations and notes.

Edition limited to 750 sets.

The Russian Jew in the United States; studies of social conditions in New York, Philadelphia, and Chicago, with a description of rural settlements;

Photocopy.

Evidences of man in the drift : a description of certain archaeological objects recently discovered in Massachusetts, Connecticut, New York, Pennsylvania and New Jersey /

T.p. printed in red and black; tail-piece.

A history and description of New England, general and local.

No more published.

Taverns and stagecoaches of New England : anecdotes and tales recalling the days of stagecoach travel and the ancient hostelries where strangers tarried /

Mode of access: Internet.

A New Vision: U.S Travel and Tourism Industry

Greg Farmer, U.S. Under Secretary of Commerce for Travel and Tourism, envisions a new proactive role for travel and tourism in the U.S. He has written this article especially for the FIU Hospitality Review.

New Observations of Balmer Continuum Flux in Solar Flares:Instrument Description and First Results

Increase in the Balmer continuum radiation during solar flares was predicted by various authors, but has never been firmly confirmed observationally using ground-based slit spectrographs. Here we describe a new post-focal instrument, the image selector, with which the Balmer continuum flux can be measured from the whole flare area, in analogy to successful detections of flaring dMe stars. The system was developed and put into operation at the horizontal solar telescope HSFA2 of the Ondřejov Observatory. We measure the total flux by a fast spectrometer from a limited but well-defined region on the solar disk. Using a system of diaphragms, the disturbing contribution of a bright solar disk can be eliminated as much as possible. Light curves of the measured flux in the spectral range 350 – 440 nm are processed, together with the Hα images of the flaring area delimited by the appropriate diaphragm. The spectral flux data are flat-fielded, calibrated, and processed to be compared with model predictions. Our analysis of the data proves that the described device is sufficiently sensitive to detect variations in the Balmer continuum during solar flares. Assuming that the Balmer-continuum kernels have at least a similar size as those visible in Hα, we find the flux increase in the Balmer continuum to reach 230 – 550 % of the quiet continuum during the observed X-class flare. We also found temporal changes in the Balmer continuum flux starting well before the onset of the flare in Hα.