Show navigation test by ft a recent invention at detroit DETROIT may L 1 dispatch san francisco Ch C demonstrated today to day that water c tn an bo be navigated at nuy nay reasonable depth below the tho the final filial test of his sab gob marine boat upon which he be has boon been at work or 1800 wua was mado made in tile iho river rause range ovo offles from detroit and was entirely I 1 cry to the ibe inventory ilvento 11 tile alio river Is only odly sixteen feet beet deep which of i he boat being submerged tuo too f acol a ol 01 it w was a rat run up nud must iowa and narosa V in stream several times tur burring ring and arning ut at tho the allot pleasure without accident tile boat is ia cleur soaped made of oal oak the choll being 40 foci ions U foot lih 0 feet feel wide alit ahle and 7 c tiel alil l Is a storage battery of ago colls cells bich is latin bellowed ad to be the largest over ever mado in a do this also alo light tile course of tile tho boat in directed by the abo pilot who stands la in a small conning tower w aich Is 3 provided with lookout bohoss it Is noo esstry jo in hearings bearings to rio to the surface but in so NO doing only a tow fow inches of tile top lop of the tower lower appears above the iho surface with the ibo coursing conning tower hermetically seed led ibo be interior luter lur of tho the boat 1500 1000 cubic feet of air wheels lire are on each side si dalway between the how bow and stern onn can toot foot bolow tho the contor center line tho the bout 1 Is raised anti and lowered by letting water into foto tho the hold hod land find by the side air lukas Is this torpedo will eventually revolutionize the present moth oda ads of naval farfaro war taro faro |