Wellington FhilosopMcal Society. 455 



required before any assertion can be supported as to the superior conve- 

 nience of a dock. 



An abstract of a paper, by James Balfour, C.E,, Marine Engineer, " On 

 the Merits of Graving Docks," was then read, and both papers were discussed, 

 the following gentlemen speaking on the subject: — Dr. Hector, Captain 

 Vine Hall, Mr. Travers Mr. Crawford and Mr. E. Pharazyn. 



