The reader who has had the patience to follow this wearisome catalogue to the end, may convince himself that many men of genius have, as it were, a specific chronology; that is to say, a tendency to make their most numerous observations, to accomplish their finest discoveries, or their best æsthetic productions, at a special season or in one month rather than another: Spallanzani in the spring, Giusti and Arcangeli in March, Lamartine in August, Carcano, Byron, and Alfieri in September, Malpighi and Schiller in June and July, Hugo in May, Béranger in January, Belli in November, Melli in April, Volta in November and December, Galvani in April, Gambart in July, Peters in August, Luther in March and April, Watson in September. A more general kind of specific chronology, a sort of intellectual calendar, is presented when we sum up various intellectual creations--poetry, music, sculpture, natural discoveries--of which the date of conception can be precisely fixed. This may be seen from the following table:-- ----------+----------+-----------------+--------------+-------- | | | Physical, | | Literary | | Chemical, | Month. | and | Astronomical | and | Total. | Artistic |Discoveries.[224]| Mathematical | | Works. | | Discoveries. | ----------+----------+-----------------+--------------+-------- January | 101 | 37 | -- | 138 February | 82 | 21 | 1 | 104 March | 104 | 45 | 5 | 154 April | 135 | 52 | 5 | 192 May | 149 | 35 | 9 | 193 June | 125 | 24 | 5 | 154 July | 105 | 52 | 5 | 162 August | 113 | 42 | -- | 155 September | 138 | 47 | 5 | 190 October | 83 | 45 | 4 | 132 November | 103 | 42 | 5 | 150 December | 86 | 27 | 2 | 115 ----------+----------+-----------------+--------------+-------- One observes at once that the most favourable month for æsthetic creations is May; then come September and April; the minimum is presented by the months of February, October, and December. The same may be observed partially with astronomical discoveries; but here April and July predominate, while for physical discoveries as well as for æsthetic creations, the months of May, April, and September stand first. Thus the advantage belongs to the months of early heat more than to the months of [Illustration: RELATION to average monthly temperature to admission of lunatics to asylum, and to production of works of genius.]