■f 



THE 



(j^trinBurgif 



JOURNAL OF SCIENCE, 



W 



CONDUCTED BY 



DAVID BREWSTER, LL.D. 



F.R.S. LOND. AND EDIN. F.S.S.A. M.R.I. A. 



COBBESPONDING MEMBER OF THE INSTITUTE OF FRANCE ; CORBBSPONDINQ MEMBEB OF THE ROVAL 



PRUSSIAN ACADEMY OF SCIENCES ; MEMBEB OF THE ROYAL SWEDISH ACADEMY 



OF SCIENCES; OF THE ROYAL SOCIETY OF SCIENCES OF DENMARK ; 



OF THE ROYAL SOCIETY OP GOTTINGEN, &C. &C. 



VOL. 11. 



NEW SERIES. 



OCTOBER— APRIL. 



THOMAS CLARK, EDINBURGH: 



T. CADELL, LONDON: 

 AND MILLIKIN & SON/ DUBLIN. 



M.DCCC.XXX. 



