PEOCEEDINGS OF 

 THE ROYAL SOCIETY. 



VOL. XXXII. 



No. 213. 



CONTENTS. 



May 5, 1881. 



PAGE 



List of Candidates 



104 



I. On the Determination of the Ohm in Absolute Measure. By Lord 



Eayleigh, E.B.S., and Aethtje Schttstee, Ph.D., F.E.S. . . . 104 



II. On the Structure and Development of the Skull in Sturgeons (Acipenser 



ruthenus and A. sturio). By W. K. Paekee, F.E.S 142 



III. On the Estimation of the Amylolytic and Proteolytic Activity of Pan- 

 creatic Extracts. By William Eobeets, M.D., F.E.S., Physician to 

 the Manchester Eoyal Infirmary, and Professor of Clinical Medicine in 

 Owens College ........... 145 



I. On the Physiological Action of /S Lutidine. By C. GtEEyille Williams, 

 F.E.S., and W. H. Watees, B.A., Demonstrator in the Physiological 



II. Discussion of the Results of some Experiments with Whirled Anemo- 

 meters. By Professor Cr. Or. Stoe:es, Sec. Pv.S 170 



III: Investigations on the Spectrum of Magnesium. By Gr. D. Liveing-, M.A., 

 F.E.S., Professor of Chemistry, and J. Dewae, M.A., E.E.S., Jack- 

 sonian Professor, University of Cambridge (Plate 1) . . . . 189 



IY. Note on the Eeduction of the Observations of the Spectra of 100 Sun- 

 spots observed at Kensington. By J. Noeman Locktee, E.E.S. 



May 12, 1881. 



Laboratory, Cambridge 



162 



(Plate 2) 



203 



For continuation of Contents see 4dh page of Wrapper! 



Price Eight Shillings. 



