404 



Royal Society : — On the Change of Form assumed by 

 Table (continued). 



<4H *3 



3 

 1 



S3 

 3 



"8 . 

 11 



S o 



"S'g 



fs 



Form of article, &c. 



Dimensions, in inches. 



|1 



CQ 4) 



M 



4) 



<- 4) 



i 



5 



14P. 



Wrought 

 iron. 



20 



on 



its 

 side. 



12" cylinder, 9" deep, |" thick :— 

 External circumference of edges .. 



do. do. centre.. 

 Depth on curve, part cooled in air. 



do. do. water-line. 



do. do. in water... 

 Swellofside,l"belowW.L.(at«,£) 

 Hollowofside,4"above do.(atc,rf) 

 Longest ex. diam. 1" below W. L. 

 Shortest do. at rt. angles to W.L. 

 Indentation of edges a little \ 



40-65 



40-65 



900 



9-00 



9-00 



0-00 



0-00 



12-94 



12-94 



0-00 



39-86 



41-05 



9-00 



8-25 



8-80 



1-00 



0-40 



14-275 



1200 



0-45 



-0-79 

 +0-40 

 0-00 

 -0-75 

 -020 

 +1-00 

 +0-40 

 +1-335 

 -0-94 



+0-45 





15* 1 . 



Wrought 

 iron. 



20 



i 



on 



its 

 side. 



3 ,f cylinder, 5f " deep, solid : — 



External circumference of edges- 

 do do. centre. 



Depth along part cooled in air ... 

 do. do. on W.L. 

 do. do. in water. 



Longest diam. at rt. angles to W.L. 



Shortest do. parallel with W.L. "1 



9-4 



9-4 



5-375 



5-375 



5-375 



3-000 



3-000 



9-2 



9475 



5-150 



5-100 



5-225 



3-100 



2-760 



-0-2 



+0-075 



-0-225 



-0-275 



-0-150 



+0-100 



-0-240 





16. 



Cast 

 iron. 



2 



i 



12" cylinder, 9" deep, f" thick:— 



External circumf. of upper edge... 



do. do. least expansion 



do. do. of lower edge — 



40-90 

 40-90 

 40-90 



41-05 

 40-95 

 4115 



+0-15 

 +0-05 

 +0-25 



17. 



Cast 

 iron. 



5 



* 



3" solid cylinder, 6" deep: — 

 External circumf. of upper edge... 

 do. do. least expansion 

 do. do. Of lower edge- 



9-4 

 9-4 

 9-4 



9-55 

 9-50 

 9-55 



+0-15 

 +0-10 

 +0-15 



Remarks. 



a The width was unaltered, and the thickness of the upper edge slightly increased. 

 Figs. 1 and 2. b Fig. 4. c Fig. 5. d Fig. 6. e Fig. 7. f Fig. 8. 



g The fibre opened at the fifteenth cooling. Fig. 9. 



h The fibre opened at the fifteenth cooling after having exhibited a slight crack 

 for two or three previous coolings. Fig. 10. 



1 The thickness of the metal at the indentation on ends increased -1". Fig. 11. 



k The thickness of the metal at the indentation on ends increased similarly to 

 the last. Fig. 12. 



1 Cooled in air 15 times. Cooled in water 10 times. 



m The ends became slightly rounded. Fig. 13. 



n At the last cooling the lower end of the cylinder began to crumble away in 

 the water. Fig. 16. 



° The expansion of the lower end may probably be due to the cracking of the 

 metal, which was greatest at that part. 



p Figs. 17, 18, 19. There was an increased thickness of metal at e. 



« Figs. 20, 21. 



[The cause of the curious phenomenon described by Colonel Clerk 

 in the preceding paper seems to be indicated by some of the figures, 



