LONGITUDE OF McGILL OBSERVATORY. 



153 



CUMBINATIOX Ul'- MlCAN ImH^VTIONS KliO.M TlMF. GuOVl'S WITH THE SePAKATE EQUATIONS OF THl 



PoLAK Gitoup. Equations uktvvkkn a AiNd c. Fuo.m Obseuvations at Montreal. 



Sec. III., 1885. 20. 



