of Edinburgh, Session 1879 - 80 . 
361 
several of the most successful experiments were measured with the 
following results. The numbers are merely scale readings, the 
spheres being 4 '6 6 diameter. 
No. I. 
Diameter of 
Height 
Diameter of 
Sphere. 
of Segment. 
Segment. 
2200 
312 
1585 
2213 
318 
1583 
2212 
320 
1597 
2214 
321 
1592 
2210 
317 
1598 
2218 
322 
1590 
2204 
324 
1588 
2207 
315 
1589 
2211 
314 
1592 
2203 
317 
1594 
Average 2209 
318 
1591 
The variations in the measurements are due principally to the 
roughness of the surface after the sphere has been immersed in the 
liquid metal. Measurements of similar spheres gave as follows : — 
h A 
M 
6 
Diameter of 
Height 
Diameter of 
Sphere. 
of Segment. 
Segment. 
2205 
319 
1584 
2193 
320 
1591 
2221 
314 
1596 
2207 
313 
2226 
317 
320 
Average 2210 
317 
1590 
No. III. 
Diameter of 
Height 
Diameter of 
Sphere. 
of Segment. 
Segment. 
2221 
317 
1580 
2204 
321 
1598 
2207 
314 
1607 
2200 
315 
Average 2209 
316 
1595 
