98 



Art. X. — Astronomical Notes. 

 By R. L. J. Ell'ery, F.RS. 



[Read 14th June, 1883.] 



Art. XI. — On Iron Girders. 

 By Professor Kernot, M.A. 



[Read 12th July, 1883.] 



Art. XII. — Schones New System of Sewage, 

 By Mr. Blackett. 



[Read 9th August, 1883.] 



