VOL. LXXVIII.] 



Aks. 



€5. . 4-5 

 66. . 46 

 67. . 47 

 68. . 48 

 69. . 49 

 70. . 50 

 71. .51 

 •72. . 52 



Probabilities. 



26.90 

 26.46 

 26.01 

 25,55 

 25.09 

 24.61 

 24.06 

 23 



4976 



73.10 

 73.54 

 73.99 

 74.45 

 74.91 

 75.39 

 75.94 

 51 



1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 



40. . 10 

 41.. 11 

 42.. 12 

 43. . 13 

 44.. 14 

 45.. 15 

 46.. 16 

 47. . 17 



31. 

 32. 

 33. 

 34. 

 35. 

 36. 

 37. 

 38. 

 39. 



41.. 

 42.. 

 43.. 

 44.. 

 45.. 

 46.. 

 47.. 

 48.. 

 49.. 

 50.. 

 51.. 

 52.. 

 53.. 

 54.. 



1 143.57 

 233.98 

 3 29.85 



26.88 

 25.20 

 23.53 

 22.30 

 21.40 

 20.86 

 20.^9 

 20.45 

 20.35 

 20.26 

 20.18 



51.77 

 60.64 

 64.43 

 67.14 

 68.65 

 70.15 

 71.17 

 72.02 

 72.47 

 72.67 

 72.70 

 72.82 

 72.86 

 72.89 

 72.92 

 72.94 

 7299 



56.4 



^6.02 



70.15 



73.12 



74.8O 



76.47 



77.70 



78.60 



79.14 



*9.4l 



79-55 



79.65 



79.74 



79.82 



51. 

 52. 

 53. 

 54. 

 55. 

 56.. 6 

 57.. 7 

 58.. 8 



59.. 9 

 60. . 10 

 61.. 11 

 62.. 12 



60.84 

 71.13 

 75.54 

 78.72 

 80.52 

 82.32 

 83.65 

 84.65 

 85.26 

 85.58 

 85.78 

 85.94 



PHILOSOPHICAL TRANSACTIONS. 



Twenty Years Difference. 

 Ages. Probabilities. Ages. Probabilities. 



470 



73.. 53 

 74. . 54 

 75.. 55 

 76. . 56 

 77. . 57 

 78.. 58 

 79. . 59 

 80. . 60 



48.. 18 

 49. . 19 

 50.. 20 

 51. .21 

 52.. 22 

 53.. 23 

 54. . 24 

 55.. 25 

 56. . 26 

 57. . 27 

 58. .28 

 59. . 29 

 60. . 30 

 61.. 31 

 62.. 32 

 63.. 33 

 64. . 34 



22.91 

 22.35 

 21.81 

 21.31 

 20.80 

 20.24 

 19.59 

 I8.9O 



77.09 

 77.65 

 78.19 

 7^-69 

 79-20 

 79.76 

 80.41 

 81.10 



81. .61 

 82. . 62 

 83.. 63 

 84.. 64 

 85.. 65 

 86. . 66 

 87. . 67 

 88.. 6S 



18.23 

 17.57 

 17.03 

 16.73 

 16.55 

 16.29 

 16 38 

 16.44 



Thirty Years 



26.90 

 26.72 

 26.50 

 26.21 



25.89 

 25.56 

 25.22 

 24.87 

 24.52 

 24.16 



23.79 

 23.41 

 23.02 

 22.63 



22.23 

 21.81 

 21.38 



73.10 

 73.28 

 73.50 

 73 79 



74.11 

 74,44 

 74.78 

 75.13 

 75.48 

 75.84 

 76.21 

 76.59 

 76.98 

 77.37 

 77.77 

 78.19 

 78.62 



Difference. 



65 

 66 

 67 



6^ 



69. 



70. 



71. 



72. 



73. 



74. 



75. 



76. 



77. 



78. 



79. 



80. 



81, 



,35 

 .36 

 .37 



.38 



39 

 40 

 41 

 42 

 43 

 44 

 45 

 46 

 47 

 48 

 .49 

 .50 

 .51 



.93 

 .47 

 ,01 

 ,54 

 ,06 



59 

 ,10 

 .58 

 05 

 53 

 04 

 60 

 51 

 68 

 16 

 61 

 .04 



55. 

 56. 

 57. 

 58. 



59. 

 60. 

 61. 

 62. 

 63. 

 64. 

 65. 



66. 

 67. 

 68. 



63. 

 64. 

 65. 

 66. 

 67. 

 68. 



69. 

 70. 

 71. 

 72. 

 73. 

 74. 



15 

 16 

 17 

 18 



19 

 20 

 21 



22 

 23 

 24 

 25 



,26 

 27 



,28 



Forty Years Difference. 

 69.. 29 15 



79.89 

 79-95 

 80.04 

 80. 19 

 80.41 

 8O.69 

 81.04 

 81.45 

 81.88 

 82.32 

 82.78 

 83.24 

 83.71 

 84.19 



70. 



71. . 



72. 



73. 



74. 



75., 



76.. 



77.. 



78. 



79. 



80., 



81., 



82. 



32 

 83 

 3 + 

 8i 

 35 

 87 

 42 

 99 

 .56 

 12 

 64 

 .21 

 68 

 19 



81.77 

 82.43 

 82.97 

 83 27 

 83.45 

 83.71 

 83.62 

 83.56 



79.07 

 79.53 

 79-99 

 80.46 

 8O.94 

 81.41 

 8 1.90 

 82.42 

 82.95 

 83.47 

 83.96 

 84.40 

 84.85 

 85.32 

 85.84 

 86.39 

 86.96 



84.68 

 85.17 

 85.66 

 86.16 

 i6.65 

 87.13 

 87.58 

 S8.01 

 88.44 

 88.88 

 S9.36 

 89.79 

 90.32 

 9O.8I 



13 

 , 14 



,15 

 16 

 17 

 18 



19 



20 

 21 

 22 

 23 

 24 



Fifty Years 



86.10 

 86.24 

 86.38 

 86.50 

 86.65 

 86.86 

 87.14 

 S7.47 

 87.89 

 88.35 

 88.80 



Difference. 



75 89.25 



75.. 25 

 76. . 26 

 77.. 27 

 78.. 28 

 79. . 29 

 80. . 30 

 81. .31 

 82.. 32 

 83. . 33 

 84. . 34 

 85.. 35 

 86. . 36 



10,32 

 9.91 

 9.50 

 9.07 

 8.61 

 8.15 

 7.70 

 7.27 

 6.88 

 6.60 

 6.35 

 6.12 



89.68 

 90.09 

 90.50 

 90.93 

 91.39 

 91.85 

 92.30 

 92.73 

 93.12 

 93.40 

 93.65 

 93.88 



Ages. Probabilities. 



89.. 69 

 90. . 70 

 91. .71 



92 .72 



93 .73 

 94. . 74 

 95 .75 

 96. . 76 



82, . 52 

 83. . 53 

 84. . 54 

 85.. 55 

 86. . 56 

 87, . 57 

 88.. 58 

 89. . 59 

 90 60 

 91. .61 

 92.. 62 

 93.. 63 

 94. . 64 

 95.. 65 

 06. . 66 



16.23 

 15.67 



14.50 



13.05 



11.08 



9-24 



7.17 



5,12 



83,77 

 84,33 

 85,50 

 86.95 

 88,92 

 90.76 

 92.83 

 94.88 



12.46 



11.94 



11.60 



11.30 



11.04 



10,80 



10.63 



10,25 



9.65 



8,68 



7.54 



6.18 



4.93 



3 68 



2,58 



87.54 

 88,06 

 88,40 

 88.70 

 88,96 

 8920 

 89.37 

 89.75 

 90.35 

 91.32 

 92,46 

 93.82 

 95.07 

 96.32 

 97.42 



83,, 



84., 



85.. 



86,, 



87,. 



88., 



89. 



90. 



91. 



92., 



9S.. 



9i . 



95. 



96. 



,7691 24 

 91,54 

 91.82 

 92,05 

 92.26 

 92.41 

 9-^68 

 93.10 

 93.83 

 9i.67 

 ,3295.68 

 .42 96.58 

 .5197.49 

 .73 98.27 



87.. 37 

 88.. 38 

 89. . 39 

 90. . 40 

 91.. 4.1 

 92. . 42 

 93. . 43 

 94. . 44 

 95. . 45 

 96. . 46 



5.91 19^.09 

 5.74;94.26 

 5.48194.52 

 5.11;94.89 

 4.55'95.45 

 3.9296.O8 

 3.15!96.85 

 2.47'97.53 

 1. 80*98.20 

 1.23198.77 



