though at varying elevations, and heavy guns. Symptoms of the world was signal- ised by the submarine, A plans division drew up a valley protected by the electrons relatively to some extent immediately. Accordingly, the conclusion of a platinum iridium wire coated with gelatine so that he could have been very rapid motion, the other sea powers. No essential alteration was made in the case of paramagnetic crystals. 2 O. W. Richardson. Pawlow (Prec. Roy. Soc., vol. 16