Conserving the nation's coasts and estuaries : a strategic plan for the National Estuarine Research Reserve System : a state and federal partnership.

Mode of access: Internet.

Commodity reserves. Hearings before a sub-committee of the Committee on Agriculture and Forestry, U.S. Senate, Ninetieth Congress, second session on S.2233, S.2617, and S.2743; bills to provide for the establishment and maintenance of reserve stocks of agricultural commodities by producers and the Commodity Credit Corporation for National security, public protection, meeting international commitments, and for other purposes.

Hearings held Jan. 30-31, 1968.

Operation of the national and federal reserve banking systems. Hearings before the Committee on banking and currency, United States Senate, Seventy-second Congress, first session, on S. 4115, a bill to provide for the safer and more effective use of the assets of federal reserve banks and of national banking associations, to regulate interbank control, to prevent the undue diversion of funds into speculative operations, and for other purposes ... Printed for the use of the Committee on banking and currency.

Peter Norbeck, chairman.

Use of wetland habitats by birds in the National Petroleum Reserve--Alaska /

Mode of access: Internet.

To promote the national defense by strengthening the air reserve.

Mode of access: Internet.

The National transportation posture study, 1963 : study of the utilization and usable reserve capacity of U.S. transportation systems under pervailing operating practices and traffic patterns /

"Administratively restricted."

National housing act : hearings before the Committee on Banking and Currency, United States Senate, Seventy-third Congress, second session, on S. 3603, a bill to improve nation-wide housing standards, provide employment and stimulate industry ; to improve conditions with respect to home mortgage investment, and to eliminate the necessity for costly second-mortgage financing, by creating a system of mutual mortgage insurance and by making provision for the organization of additional institutions to handle home financing ; to promote thrift and protect savings ; to amend the Federal home loan bank act ; to amend the Federal reserve act ; and for other purposes. May 16-24, 1934.

Duncan U. Fletcher, chairman.

Reconnaissance of Noatak National Preserve and biosphere reserve as a potential site for inclusion in the integrated global background monitoring network /

"June 1986."

Agricultural maps in the National Archives of the United States, ca. 1860-1930 /

Mode of access: Internet.

Federal laws affecting national banks, including provisions of U. S. Revised statutes, Federal reserve act, Deposit insurance law, Emergency banking act, Bank conservation act, Banking act of 1933, Banking act of 1935 and other laws affecting the national banking system as of January 1, 1950.

"Compiled to supersede and bring up to date the previous edition, published in 1940."

Federal laws affecting national banks, including provisions of U. S. Revised statutes, Federal reserve act, Deposit insurance law, Emergency banking act, Bank conservation act, Banking act of 1933, Banking act of 1935 and other laws affecting, directly or indirectly, the national banking system, as of January 1, 1936.

On cover: National bank laws as of Jan. 1, 1936

Statue of Liberty National Monument, maps /

In text: In 1986 the Statue will be 100 years old.

Sea otter predation and the distribution of bivalve prey in the Elkhorn Slough National Estuarine Research Reserve

The California sea otter population is gradually expanding in size and geographic range and is consequently invading new feeding grounds, including bays and estuaries that are home to extensive populations of bivalve prey. One such area is the Elkhorn Slough, where otters have apparently established a spring and summer communal feeding and resting area. In anticipation of future otter foraging in the slough, an extensive baseline database on bivalve densities, size distributions, biomasses, and burrow depths has been established for three potential bivalve prey species, Saxidomus nuttalli, Tresus nutallii, and Zirphaea pilsbryi. In 1986, the Elkhorn Slough otters were foraging predominately at two areas immediately east and west of the Highway 1 bridge (Skipper's and the PG&E Outfall). Extensive subtidal populations of Saxidomus nuttalli and Tresus nuttallii occur in these areas. Shell records collected at these study areas indicated that sea otters were foraging selectively on Saxidomus over Tresus. The reason for this apparent preference was not clear. At the Skipper's study site, 51% of the shell record was composed of Saxidomus, yet this species accounted for only 16% of the in situ biomass, and only 39% of the available clams. Tresus represented 49% of the shell record at Skipper's, yet this species accounted for 84% of the in situ biomass and 61% of the available clams. There was no difference in mean burrow depth between the two species at this site so availability does not explain the disparity in consumption. At the PG&E Outfall, Saxidomus represents 66% of the in situ biomass and 81% of the available clams, while Tresus accounts for 34% of the in situ biomass and 19% of the available clams. Saxidomus accounts for 96% of the shell record at this site vs. 4% for Tresus, again indicating that the otters were preying on Saxidomus out of proportion to their density or biomass. High densities and biomasses of a third species, Zirphaea pilsbryi, occur in areas where sea otters were observed to be foraging, yet no cast-off Zirphaea shells were found. Although it is possible this species was not represented in the shell record because the otters were simply chewing up the shells, it is more likely this species is avoided by sea otters. There were relatively few sea otters in the Elkhorn Slough in 1986 compared to the previous two years. This, coupled with high bivalve densities, precluded any quantitative comparison of bivalve densities before and after the 1986 sea otter occupation. Qualitative observations made during the course of this study, and quantitative observations from previous studies indicate that, after 3 years, sea otters are not yet significantly affecting bivalve densities in the Elkhorn Slough.

National numeracy tests : a graphic tells a thousand words

Mandatory numeracy tests have become commonplace in many countries, heralding a new era in school assessment. New forms of accountability and an increased emphasis on national and international standards (and benchmarks) have the potential to reshape mathematics curricula. It is noteworthy that the mathematics items used in these tests are rich in graphics. Many of the items, for example, require students to have an understanding of information graphics (e.g., maps, charts and graphs) in order to solve the tasks. This investigation classifies mathematics items in Australia’s inaugural national numeracy tests and considers the effect such standardised testing will have on practice. It is argued that the design of mathematics items are more likely to be a reliable indication of student performance if graphical, linguistic and contextual components are considered both in isolation and in integrated ways as essential elements of task design.