292 Miscellaneous Intelligence. 
and ignite till all the mercury as well as the cyanogen is expelled, 
eaving pure oxyd of nickel. Precipitate the cobalt by hydrochloric 
acid, filter, wash, dry and ignite as before, and thus obtain the oxyd of 
cobalt. — 
and indicates the mode of observation he adopted. By comparing 
observations and seeking to unite them by a formula, he has found that 
only the third of the period of flood and ebb; it has ay height of 3:8 
inches. The high waters of the 3d oscillation happen later than those 
rises more slowly than elsewhere. But this inflection represents the 
phenomena, called (manicha) the stand, and which consists in this, that 
near the middle of the tide-wave the water ceases to rise and after re- 
maining for some time at the same height, slowly falls. These phe- 
place, the flood lasts longer than the ebb, and in the river Kuja this 
this predominance of flood over ebb, and M. Tal yzine seeks to decom- 
pose these influences. On examining the curves of projection, it ap- 
