of Edinburgh, Session 1885-86. 
Table IV.— Alloy SnPb 3 . 
693 
Time in Seconds. 
Temperature. 
Deflection. 
0 
247° C. 
8-9 
30 
242° 
9-1 
60 
240° 
7 '3 
90 
232° 
57 
120 
218° 
5*7 
150 
203° 
5*3 
180 
190° 
5-2 
210 
176° 
5-1 
240 
170° 
5-0 
270 
164° 
4-0 
300 
156° 
4-1 
330 
146° 
4*0 
360 
137° 
4*1 
390 
130° 
41 
Table V. — Alloy Sn 3 Pb. 
Time in Seconds. 
Temperature. 
Deflection. 
0 
198° 0. 
6-8 
30 
188° 
6-6 
60 
180° 
6-3 
90 
170° 
6-5 
120 
170° 
5-8 
150 
168° 
5*2 
]80 
168° 
3-7 
210 
165° 
3-4 
240 
150° 
3*1 
270 
140° 
2-9 
300 
131° 
2*8 
330 
121° 
27 
6. Examples upon the Reading of the Circle or Circles of a 
Knot. By the Rev. Thomas P. Kirkman, M.A., F.R.S. 
How this reading is to he done is well known ; but it may be 
useful to have more examples. Consider the two following circles 
of two unifilars each of fourteen crossings — 
aFMcAd&eC^EycA/BDCaDBEy/eGC, 
a/6DcAdGeC/&yEAFBdCaDpEcFBCe, 
which are the simplest possible that have their janal symmetries. 
I wish to show that the knots are completely given by their circles, 
as are also their symmetries. 
