St. Louis, July 4. - loday .vill be the big day of the interstate drill, being the JTourth, and was opened by the uring of the national salute. The grand artillery contest was the principal feature of intereet this inorning, four of the most notod national guard batteries being entend to drill for f3,000 divïded into three prizos. They are: Battery A, of St. Ixïuis; Rockville (Ind.) Light Arillery; floxias (Tex. ) Rrtillery oo;ipany, and the ladianapolis Lijiht Artillery. After exhibition drills by various conipanies there will be a shaiu battle, parcicipated in by all the troops present, followad by the dress parade and a great display of flrevorks, Yesterday the free-for-all infantry competition took plaoe, six oompauies competing, and all putting up fine drills. Who the winners oí prize3 are will not be Jciiown until Sunday, when the presentaÉlon takes place. Thero was much specuiation is to who inay receive the flrst prize ot 48,500 and the 11,000 cup. The contost seemed to be the closest between he Nationnl Rifles, Branch Guards and Belknap Kifl s, which have been through mnuy prize cirilla before. B'ive prizes are offered in this olass, and as there are six competing companie3, one will have to go home disiippointed.