| ‘TRANSACTIONS OF SECTION A. 407 
- May 26, 1913, period of swell, average of 10, on starboard = 10°6 secs. 
May 26, 1913, period of swell, average of 10, on port=10.3 secs. 
May 22, 1912 (in a steady N.E. trade wind) : 
At 11.30 a.m., swell 7°4 secs., waves 3°55 secs. 
At 3.30 p.m., swell 7°5 secs., waves 3°25 secs. 
11. The Dynamics of Evolution. By A. J. Lorna. 
12. Microscopic Crystals, with Epidiascope Tilustrations 
By G. Hooxam. 
; 13. The Goldschmidt Dynamo. By Professor T. R. Lynn, P.R.S. 
