346 



DR R. E. SCORE SBY- JACKSON 



It may be stated, generally, that the relationship between mean temperature and 

 the death-rate from phthisis is slightly inverse all the year round. 



4. Substantiates the previous statement that the relationship between mean 

 temperature and the death-rate from bronchitis is inverse all the year round, and 

 that such relationship is most distinct in winter. 



5. Supports the previous statement, that the relationship between mean 

 temperature and mortality from all causes is inverse at all ages in winter, spring, 

 and autumn ; and that such relationship is most distinct in infancy, and least so 

 in youth. It also corroborates the statement that a high mean summer tempera- 

 ture increases infantile mortality ; but it is opposed to the suggestion that a high 

 mean summer temperature also increases the death-rate from all causes at other 

 periods of life. 



Besum4 : On the Influence of the 3Iean Barometric Pressure 



Average montlily mean height of barometer of the six -winters, ... 

 „ „ .,, springs, . . . 



,, ,, „ summers, . 



„ „ „ autumns, . 



29-829 

 29-847 

 29-861 

 29-837 



In the following table, the upper lines represent the average mortality of the 

 months whose mean barometric readings are severally above the standards of re- 

 ference, whilst the lower lines represent the average mortality of the months with 



barometric readings belom the standard 





At all Ages from 



From all Causes at 



AU 

 Causes. 



ZjTnotic 

 Diseases. 



Phthisis. 



Bronchitis. 



0-5 

 Tears. 



5-20 

 Tears. 



20-60 

 Tears. 



CO, &c. 

 Tears. 



Average mortality of nine winter months, with ) 



mean height of barometer above 29-829, . J 

 Average mortality of nine -winter months, with 1 



mean height of barometer ftfitotw 29-829, . > 

 Average mortality of eight spring months, -with ' 



mean height of barometer a6ove 29-847, 

 Average mortality of ten spring months, with ) 



mean height of barometer below 29-847, . J 

 Average mortality of ten summer months, with ' 



mean height of barometer a&OTC 29-861, 

 Average mortality oi eight summer months, with ) 



mean height of barometer fteZow 29 861, . j 

 Average mortality oieleven autumn months, with 



mean height of barometer above 29-837, 

 Average mortality oi seven autumn months, with > 



mean height of barometer below 29-837, . / 



254-26 

 259-52 

 235-85 

 238-72 

 202-97 

 198-19 

 214-57 

 196-86 



5800 

 70-00 

 47-12 

 53-00 

 49-44 

 45-41 

 61-64 

 57-00 



31-69 

 29-02 

 34-68 

 35-06 

 29-30 

 32-01 

 24-97 

 23-20 



29-51 

 28-76 

 22-24 

 21-22 

 10-30 

 11-99 

 15-93 

 13-27 



116-91 



122-15 



104-30 



107-72 



95-50 



88-06 



105-06 



91-90 



22-68 

 24-50 

 24-64 

 24-22 

 21-30 

 22-50 

 21-65 

 21-04 



68-92 

 69-55 

 67-06 



67-10 

 54-76 

 55-76 

 55-08 

 51-91 



45-67 



43-35 



39-89 



39-46 



31-39 



31-90 ! 



32-70 



31-57 



The foregoing table — 



1. Corroborates the previous suggestions, that over the whole year the rela- 

 tionship between the mean height of the barometer and the death-rate from all 

 causes is inverse ; that the relationship is hiverse in winter and spring, and that 

 it is direct in autumn ; but it opposes the suggestion of an inverse relationship in 

 summer. 



