365 
Table I. Pappus-cells. 
Integrals. 
| É Observed. Computed. Diff. Obs— Comp. 
De le éatiens |/sa. 112 
Q | 
+ | 
67}: 1 0.000 | 0.000 | 0.000 |! 0.000 0.000 
13) 3 001 000 000 be) el 
81}, 5 002 | 000 | 001 | +2 | +1 
lt 22 008 | 002 | 006 | +6 | +2 
10:/,| 61 D224 0 028 MO 6 | 2 
l'es 189 069 070 066 br. ge 9 
121/,| 408 148 148 143 0 | +5 
131/,| 699 2544| 0 25811254)? = 4) 0 
14/2 -1070 389 388 388 SE PE 
01443, 525 5244010525 RO 0 
16}/:111793 652 651 653 el — Î 
171/,| 2087 759 759 | 759 0 0 
181/;| 2319 843 843 840 Oh 03 
191/,| 2487 904 903 898 | +1 | +6 
20!/,| 2585 940 943 OS 3) 3 
21/,| 2649 963 | 968 | 963 | —5 0 
22312603. | 979.4] : 083%) 9784 24.) + 1 
23422712 986 992 988 — 6 — 2 
241/,| 2732 008.41 "0064 00341423 0 
2541 12743.:| 907 998 996 — | 1 
20UE1.:2744 «|, 996 999 998 — ] 0 
211 2747 99041 "1:0001% 12999 — 1 0 
28'/.| 2749 | 1.000 | 1.000 | 1.000 0 | 0 
291/,| 2750 1.000 | 1.000 | 1.000 0 | 0 
N.B. The numbers in bold-faced type were used for 
the solutions. 
Recueil des trav. bot. Néerl. Vol. XII. 1915. 24 
