231. Ms. Chambers is among the forecasters who predict that the rate of addition to arable lands will drop while the rate of loss rises

232. Unlike the premiums for auto insurance, the premiums for personal property coverage are not affected by the frequency of claims, but if the insurance company is able to prove excessive loss due to owner negligence, it may decline to renew the policy..

233. Recently implemented "shift-work equations" based on studies of the human sleep cycle have reduced sickness, sleeping on the job, and fatigue among shift workers while raising production ficiency in various industries.

234. The physical structure of the human eye enables it to sense light of wavelengths up to 0.0005 millimeters; infrared radiation, however, is invisible because its wavelength--0.1 millimeters--is too long to be registered by the eye.

235. Spanning more than fifty years, Friedrich Miiller&aposs career began in an unpromising apprenticeship as a Sanskrit scholar and culminated in virtually every honor that European governments and learned soci-eties could bestow.

236. The Coast Guard is conducting tests to see whether pigeons can be trained to help find survivors of wrecks at sea.

237. It seems likely that a number of astronomical phenomena, such as the formation of planetary nebulas, are caused by the interaction of two stars orbiting each other at close range.

238. According to a recent study by Rutgers University, the number of women in state legislatures has grown in every election since 1968.

239. Organized in 1966 by the Fish and Wildlife Service, the Breeding Bird Survey uses annual roadside counts along established routes to monitor changes in the populations of more than 250 bird species, including 180 songbirds.

240. What brought the automobile company back from the verge of bankruptcy shortly after the Second World War was a special, governmentally sanctioned price increase allowed during a period of wage and price controls.

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