38 Shri7ikage, Sivelling, Warjnnrj of Cross-grained Woods 



While 323 (715-2 to 1038) g. of water were absorbed the average 

 measured width of the same face decreased by -612 cm., whereas while 

 the board underwent more thorough drying and lost 331-5 (1038 to 

 706-52) g. of water, the average whole width decreased by -673 cm., 

 which represents a decrease of -006 on the width measured during 

 absorption. 



I have pleasure in tendering thanks to Professor Dalby for his 

 extreme kindness in inventing and providing the instrument for 

 registering the changes in curvature, and to Mr Alexander Howard for 

 presenting the boards for investigation. 



