Show i Freaks and Oddities In Science N News evs The importance of studying the p psychological foundations foundations foun bun of business and industry as well veU as its Us economic economic eco ceo and t technical supports is emphasized by Professor Professor Pro- Pro fessor Morris S. S of oC the University of Penn Penn- sylvania He quoted Edison to the effect that problems lems ems in human engineering will wU receive during the coming years the same genius and attention which the nineteenth century gave cave to the more material forms of engineering As S examples of the practical ways by which psychology psychology psychology can aid executives to understand human elements elements elements ele ele- ele- ele ments in their business Professor Professor- Professors cited d psychological tests used for the selection Of f workers psychological methods of trained workers an exact knowledge of the effect of working conditions such as monotony on reduction of fatigue and the promotion of safety amon among workers The use of psychological tests In the employment of oC substation operators of the Philadelphia Electric company resulted In the reduction of operating mistakes mistakes mis- mis takes akes as much as 43 per cent Professor said sald a a a aYoung Young o oysters st will not forsake a a. roving life liCe and settle down to business until they have had a a. taste of copper When an o oyster ster first hatches from the egg it lives lives' for a couple of weeks as a swimming free larva lana propelled propelled propelled pro pro- through the water by the lashings of a multitude mul- mul of like hair processes called cilia This free- free swimming period in their lives secures the wide dis- dis or ot t tIle the e oyster young At about two weeks of age it is ripe to settle down But it does not do so unless it receives its iLs dose dose- of ot copper Lacking that it continues to swim aimlessly about becomes prematurely old and dies a prey to tos s swarmIng arming microorganisms If If it gets Its molecules of copper its cilia clUa cease to wave and it settles to the bottom There it protrudes protrudes protrudes pro pro- its one foot and proceeds to crawl laboriously about for tor a while Finally it exudes a little like glue stuff ff plants one of its two shells squarely in that and thereafter is s a fixed and solid citizen of or the oyster common common- wealth It takes very little copper to make an oyster r larva arva quit swimming and adopt the sessile life lite of the adult form One part of copper in fifty millions of water will turn the trick S a 0 a That the st state te of ot New Jersey was as a desert millions of years ears ago is the opinion voiced by Dr Minton A. A Chrysler of or the botany department of Ru university Dr Chr Chryslers Chrysler's conclusions arc are based on the examination examination exam exam- nation of or a fossil cycad found in the clay pits near Woodbridge Cycads are trees that resemble palms In n appearance but are actually related to pines and spruces The discovery of this specimen was vas as as unexpected as it was unusual Professor Chrysler explained that the cycads are arc warm weather plants and no fossil c cycad cad has ever been found nearer than Maryland Fossils of oC the same general nature have been discovered discovered discovered dis dis- dis- dis covered also in South Dakota and in Europe but they have all aU been petrified whereas the one at Rutgers Rutgers Rutgers Rut Rut- gers is of ot lignite or brown coal |