Chambers 
CoLaJbcu Obs&rvaJ>ory, Borrobajy. 
G.irves rqtreeeruthrcg, for a. ftilL luraixoro aruL for the, quarter November to Jaroutary, that/ part of 
the Solar duimaL variation/ of the horircontrxb force which runs through a, cycle of change itv a/ litncUian/. 
PhCLTrcvrvs. 1887. A .Plate k 
V/e#t, i lewman It. Co )>th 
