256 Scientific Intelligence. 
sun pouring all the p. mM. upon the southwest face of this bluff so 
expanded it that the level showed changes as great as 45”! Then 
in the evening contraction began, and continued until the level at 
sunrise exhibited changes of 45” the other way. Here was a 
change of 1' 30" certainly ~ to changes of temperature ; our low- 
est temperature was about 40°; our greatest about 79° in the 
ut this is not all: I was dismayed to find that in cooling du- 
ring the evening, the tongue of the bluff upon which the station is 
situated, twisted irregularly in azimuth as much as 18” in three 
hours. "Thi is, of course, vitiated all my results, and I continued a 
trary, 2 cade of NH, and 1 vol. of H are the products. 7 
it were ammonium, it had never been made to unite wit 
other metal than mercury. I have endeavored to overcome bot 
of oe © hy ctions. 
. 
ammonia, in other words, that metallic ammonium n (NH 
the amalga re 
the decomposing wa‘ 
rn phosphid of of bepdeciren were formed. Occasiona 
‘ould as it came into contact with the atmosphere, placing 
the nature of the reaction beyond mene As phosphid of hydro- 
cannot be formed by direct synthesis if ordinary free hydroge? 
employed, this 
of am — — employe 
enna te met 
