1008 F. General OLR (1987) 34"(113

A simple process has been developed for the production of chemicals like magnesium sulphate, magnesium chloride and potassium chloride. The steps of the process are all physical operations such as evaporation, chilling, crystallization, filtration, drying etc. excepting desulphatation. Based on data collected from laboratory and small scale operations a plant of 1 ton/batch capacity has been designed, fabricated, and installed. Material balance related parameters have been established on the basis of the experiment. PCSIR Lab., Karachi 39, Pakistan.

87:6646 Bell, F.W. and V.R. Leeworthy, 1987. Economic

demand for marinas and projected impact on wetlands. Land Econ., 63(1):79-91. Dept. of Economics, Florida State Univ., Tallahassee, FL., USA.

87:6647 Berkes, Fikret, 1987. The common property resource

problem and the fisheries of Barbados and Jamaica. Environ. Mgmt, 11(2):225-235.

Different definitions of common property resource (CPR) and the problems associated with CPR harvesting are explored. The offshore fishery of Barbados lends itself to the private property solution (allocation of individual quotas to fishermen) and the inshore fishery of Jamaica to the communal property solution (local fishermen managing their own fisheries). Four principles are proposed: (1) control of access to the resource, (2) increasing production depends on conservation of the resource base, (3) sustainable utilization of a CPR is related to the harvest technology, and (4) local-level man- agement improves prospects for the sustainable use of a CPR. Case studies illustrate that there may be conflicting local, national or international interests to be considered in a successful management approach. Inst. of Urban and Environ. Studies, Brock Univ., St. Catharines, ON, L2S 3AI, Canada.

87:6648 Patterson, Kenneth, 1987. Fishy events in the

Falklands. New Scient., 114(1562):44-48.

Are the fish stocks in the vicinity of the Falkland Islands being overfished? In the case of two out of three species of squid that constitute the chief resource of the fishing industry there, Illex are overfished (using the 40 per cent escapement criterion and with about 100,000 tons having been caught in each of the past two years, 1985 and 1986) and the status of Loligo is uncertain. Hakes, hoki, and southern blue whiting are probably not being overfished; but fishing is on the increase in the area and the situation lends itself to the pessimistic

conclusion that the stocks, taken as a whole, are on the verge of being overfished. Falkland Islands Dev. Corp., Stanley, Faulkland Islands. (wbg)

87:6649 Rasid, Harun and B.K. Paul, 1987. Flood problems in

Bangladesh: is there an indigenous solution? Environ. Mgmt, 11(2): 155-173.

Bangladesh, situated on the delta of the Ganges, Brahmaputra, and Meghna rivers, experiences river floods resulting from monsoon precipitation (annual events to which humans have adapted their settle- ments and agricultural practices) and coastal floods caused by storm surges of tropical cyclones. Modern engineering projects have been constructed to minimize flood losses, but a successful solution will require international collaboration as large areas of Bangladesh's drainage basins lie beyond its borders. Internal resources should be used to encourage indigenous adjustments to floods. Dept. of Geogr., Lakehead Univ., Thunder Bay, ON, P7B 5El, Canada.

87:6650 Smith, A.W.S. and T.L. Piggott, 1987. In search of a

coastal management data base. Shore Beach, 55(2): 13-20.

The key scientific task of coastal zone management is to project into the future the potential responses of the coastal zone to some natural or anthropogenic change. A hard look at a real-world case (Australia's Gold Coast) is disappointing: 'large though our data bank looks, it is still incapable of reducing our uncertainties' to tolerable levels. 'We conclude that we hold a chance of less than 1 in 4 of being accurate with any future predictions.' Dept. of Civil Engng, Queenland Inst. of Tech., Brisbane, Australia. (fcs)

F280. Policy, law, treaties

87:6651 Crawford, Mark, 1987. Ozone plan splits adminis-

tration. Science, 236(4805): 1052-1053.

The White House Domestic Policy Council must decide whether or not to support UNEP's proposal to first freeze and then cut chlorofluorocarbon (CFC) production worldwide by 50%. U.S. manu- facturers, the Commerce Department, and trade officials, worried about jobs, the economy, and trade competition, only want to freeze production, a position unacceptable to the EPA and the State Department. Because it stopped using CFC propel- lants in the 1970s, the U.S. is now at a competitive