778 PROFESSOR C. N. LITTLE ON NON- ALTERNATE =fc KNOTS. 



Class V. — Twist Stt. Two knots, ten numbered forms. 



I.— 63, 114, 10, 29, 83, 86, 89. 

 II.— 27, 32, 96. 



Class VI. — Twist 107r. Eight knots, fifty numbered forms. 



I.— 36, 116, 123, 26, 31, 33, 38, 88, 94, 97, 99, 112, 113. 

 II.— 23, 118, 25, 87, 92, 98, 110. 

 III.— 100, 115, 27, 32, 96. 



IV.— 18, 75, 109, 8, 17, 28, 34, 54, 85, 93, 95 111. 

 V.— 5, 64, 103, 6, 30, 44, 46. 

 VI.— 10, 29, 83, 89. 

 VII— 9. 

 VIII.— 35. 



20. It is interesting to note that in order ten as in order eight no amphicheiral non- 

 alternate knots have made their appearance. The numbers of knots must be doubled, 

 therefore, to include perversions. 



To the 253 alternate knots previously described this census adds 86 non-alternate, 

 making 339 reduced knots of ten crossings. 



These new knots are shown upon Plates I., II., III., the perversions being obtained 

 as usual by holding the plates before a mirror and looking at the images. In knot II of 

 class II., Plate I., § 16 should have excluded the second form of 83. The first 59 in 

 knot IX of class III. on Plate II. is also manifestly superfluous. 



