Report of a survey and exploration of the coal and ore lands belonging to the Allegheny Coal Company : in Somerset County, Pennsylvania ; accomppanied by maps, profiles and sections /

Mode of access: Internet.

Bibliotheca Americana : being a choice collection of books relating to North and South America and the West Indies, including voyages to the southern hemisphere, maps, engraving and medals.

Mode of access: Internet.

Stark's history and guide to Barbados and the Caribbee Islands, containing a description of everything on or about these islands of which the visitor or resident may desire information ... Fully illustrated with maps, engravings and photoprints.

Mode of access: Internet.

Mitchell's new school atlas. Mitchell's modern atlas: a series of forty-four copperplate maps ... drawn and engraved expressly to illustrate Mitchell's new school geography.

Mode of access: Internet.

Smithsonian logarithmic tables to base e and base 10,

At head of title: Research Corporation Fund.

Social psychology, an outline and source book,

Mode of access: Internet.

Social psychology, an outline and source book.

Mode of access: Internet.

Hydrology of area 39, western region, Interior Coal Province, Kansas and Missouri /

Mode of access: Internet.

Hydrology of area 41, western region, interior coal province, Oklahoma and Arkansas /

Mode of access: Internet.

Beech-maple region : inventory of natural areas and sites recommended as potential natural landmarks /

Prepared under contract 14-10-9-990-186, Article II as revised 5 April 1970 with the U.S. Dept. of the Interior, National park Service.

Social Security : production initiatives in OHA's Region V comply with law and guidelines : briefing report to the chairman, Subcommittee on Social Security, Committee on Ways and Means, House of Representatives /

"B-242410"--P. 1

Water quality in the Great Barrier Reef region: responses of mangrove, seagrass and macroalgal communities

Marine plants colonise several interconnected ecosystems in the Great Barrier Reef region including tidal wetlands, seagrass meadows and coral reefs. Water quality in some coastal areas is declining from human activities. Losses of mangrove and other tidal wetland communities are mostly the result of reclamation for coastal development of estuaries, e.g. for residential use, port infrastructure or marina development, and result in river bank destabilisation, deterioration of water clarity and loss of key coastal marine habitat. Coastal seagrass meadows are characterized by small ephemeral species. They are disturbed by increased turbidity after extreme flood events, but generally recover. There is no evidence of an overall seagrass decline or expansion. High nutrient and substrate availability and low grazing pressure on nearshore reefs have lead to changed benthic communities with high macroalgal abundance. Conservation and management of GBR macrophytes and their ecosystems is hampered by scarce ecological knowledge across macrophyte community types. (c) 2004 Elsevier Ltd. All rights reserved.

Brain maps, great and small: lessons from comparative studies of primate visual cortical organization

In this paper, we review evidence from comparative studies of primate cortical organization, highlighting recent findings and hypotheses that may help us to understand the rules governing evolutionary changes of the cortical map and the process of formation of areas during development. We argue that clear unequivocal views of cortical areas and their homologies are more likely to emerge for 'core' fields, including the primary sensory areas, which are specified early in development by precise molecular identification steps. In primates, the middle temporal area is probably one of these primordial cortical fields. Areas that form at progressively later stages of development correspond to progressively more recent evolutionary events, their development being less firmly anchored in molecular specification. The certainty with which areal boundaries can be delimited, and likely homologies can be assigned, becomes increasingly blurred in parallel with this evolutionary/developmental sequence. For example, while current concepts for the definition of cortical areas have been vindicated in allowing a clarification of the organization of the New World monkey 'third tier' visual cortex (the third and dorsomedial areas, V3 and DM), our analyses suggest that more flexible mapping criteria may be needed to unravel the organization of higher-order visual association and polysensory areas.