lie on fcuo ^RorAL Society op EonfBcrROH—The aeventh 2 otdiaar meeting of th# Miaioit of tt* Royal cSociety of Bdwborgh a a* held 1mt night io tua lt;. Royal Institution, Mound—Sir Wilham Thomeon, cF It S, boo tkw pmident *n Urn chair The , council having awarded th# Keith Prtr* for th# j Meomal period 1831-83 to Mr Thom*# Muir, for Ms reaearohtt Into the theory of determinant* and ooutuiiitd fraction*, th© meat recent mftulnreak of revolt* nbUlo*d by him b#mg ia a paper ou14 Permanent Symmetric Function*, the Mk ,doagftll Brisbane Pru# for the p*nod 1880-82 to !, Proienor tJaroM Gtukie, for hit coutnbuhou* to 1, th* neology of thtNortb w#*tof Europe, including} hi* paper on th# geology of th# Faroe#, pub4iili#d I 111 the Transaction# of the kooMty, 1880-81 , and the Neill Pn*« for tl* triennial psnod 188083 to Profcwor Hardman, for hu P#p«* «» tlio Proceeding* and Transaction* on the Ttmicata —the pnt£i were delivered by the Chair man The following communication* were plioad on the billet —1 On *toieiioy of clothing for maintain*• vaa t*mpa**Uir«, bp fair W Thomacn 2 On' th# law of inertia, th# principle of obroaometty, j anJ the prmoipl# of absolute clinaral re*t, and of rotation, by Profet#w Jame* Thom#oo, D Sc ,\ C E 3 On a modification of G*u«* • method for delomlmng the horizontal component of t#r«a tn*l mftgnetu* fare*, and the magueHc moments 1 of bar roignata, in abwlut# measure , by Sir W Thomson* 4 On the phenomenon of greatest middl* in the cycle of a clasw #F periodic cc*u ti»u*d fixation*, by Mr Thorn** Muir ! Wjr uoderstoud that th* D2d Gordon High landers, now sUticmid m Edinburgh CaJtle, are to give a ball on the 22d AprilTa* TnoOFS IK Sgoti.ako — Colon#! 3 Reran Edwards, C , Bojal bagi*#er-, i* about I lo be appoint#*! Commanding Boy*1 Engineer m Scotland, and Colonel Keate, B A., to the com1 maud of th# Royal Artillery in Scotland