MISCELLANEOUS The June issue of the Arena is perhaps one of the very best ever issued by this clever magazine. Its article and illustrations of Boston is highly interesting and valuable. The other articles are easily up to the high excellence of the matter that has given the Arena a foremost place among American magazines. 520,547, Fire Alarm Apparatus, F. C. Thunhorst, Allegheny, Pa. 520,727, Fire Pail, A. Burgess, Owego, N. Y. 520,490, Fireproof Structure, M. F. McCarthy, Chicago, III. 520,492, Construction of F’ire roof floors, etc., M. F. McCarthy, Chicago, Ill.