14th Atom BombHast iii StateAnimals May Bs U ltd To Loarn Effect Of WeaponBy ROBERT BENNYHOFFUnited Press Stuff CorrespondentLAS VEGAS, April 14. 0U»—*The Nevada desert, where more atomic explosions have been set off . than any other place in the world, will be the scene of the 14th such blast tomorrow, if weather permits. All preparations for the latest nuclear detonation were reported complete today and the explosion will take place during • the morning unless the present favorable weather con* ditions change.Type. Not AnnouncedThere was no advance indication whether .the latest atomic test would be an air drop or a tower shot. At least' five steel towers have been erected on .Yucca Flat but Atomic. Energy Commission spokesmen would not say if the latest blast will take place there or at Frenchman's Flat.The two atomic energy testing sites are about 20 miles apart. At Yucca Flat, elaborate preparations are underway.for next week’s first public detonation of, an atomic weapon within continental United States.. The nuclear detonation to be witnessed by press, radio and television was expected to be an air drop. It was indicated that animals will be used in the blast to test the effect of the explosion on living creatures.Thousands of troops continued to move into the area'for the big blast next week. It was learned the troops would go through the same type of maneuver soldiers participated in the last time military forces took part in an atomic test.They will watch the bomb burst from somewhat closer range-than .the press and then selected combat teams will go intoithe area to check on the radiation effects. The troops will not be subjected to the blast itself.'Goggles for PressThe AEC said today it had nicknamed the spot where the press will view the explosLon as “News Knob, a hilly area looking directly on the firing site from a distance of eight or nine miles.The press will be outfitted with special goggles so they may look directly at the blast.Qualified observers termed rumors that a hydrogen bomb .might be exploded as “ridiculous, pointing out that progress on such a weapon was fax from the testing stage.Speculation that an artillery■Mt—rori nlc^ wag dC-*dtisiinEStisalchilGalI sijar i offrealaglt;thiinglingagrthasug| r*e' tior and IV groi for the aft? was tha:penlt;drer