Proceedings. i i 



September. The shrivelling appeared to be sudden, 

 partial, and quite distinct from the ordinary withering 

 process. 



Professor OSBORNE REYNOLDS, F.R.S., described a 

 phenomenon which often occurs in the breaking of glass 

 water-gauges in the Engineering Laboratory of Owens 

 College. The peculiarity of which Professor Reynolds 

 wished to have an explanation is that the fracture is 

 indicated by a slight sharp crack, which, after a pause, is 

 followed by a serious loud explosion, and the whole 

 gauge disappears almost in dust. The explosion occurs 

 after the tube is broken. Professor H. B. DlXON, F.R.S.,. 

 suggested that the fracture happens at the bottom, where 

 the water is in contact with the tube, and that when 

 the fracture reaches the top the more serious explosion of 

 steam takes place. 



Professor H. B. DlXON, F.R.S., read a paper, by 

 himself and Mr. J. A. HARKER, entitled " On the Decom- 

 position, by shock, of Endothermic Compounds." 



A paper, entitled " Experiments on the Transmission 

 of Explosions across Air-gaps," by Bevan Lean, B.Sc, 

 Dalton Chemical Scholar, and Professor H. B. DlXON, 

 F.R.S. , was also read by the latter. 



The Rev. T. P. Kirkman, F.R.S., communicated a 

 paper on " The 143 Six-letter Functions given by the First 

 Transitive Maximum Group of Six Letters, with full 

 Exhibition of the Values of the Function." 



