Dcdaclkms from Bills of jSIoHaVdy. 131 



The general estimate lias been, that if the baronietcr avcio 

 carried upward ninety feet,- the mercury would' fall one 

 tenth of an inch ; but in Martin's table, which I have fol- 

 lowed, only eighty live feet are allowed to the first tenth. 

 CamhridgCy Avgiisl 23, 1786. 



o 



XIII. A Talle shewing the 1? robabililfj of the Durcdion, Ihe 

 Pccrcnmd, and ihe Expectation of Life, in ihe Slates 

 3£assachiseiis and Neiv-IIampahirc, formed from bi^'ig two 

 Bills of MoriaVdij on ihe files of ihe American Acadcmg 



Aiis and Sciences, in the year 1789. By EDWARD 

 WIGGLESWORTH, d. d. f. a. a. 



N examination of the bills of Mortality, on the files 

 of the Academy, it appears that the society are under 



+ 



obligation to a considerable number of gentlemen, in differ- 

 ent parts of the commonwealth, for the attention which 

 they have paid to this subject. Since their formula has been 

 dispersed through the state, many gentlemen have commu- 

 nicated bills of their respective towns, or parishes, with a 

 topographical description of the same, which will lead to 

 an investigation of the natural causei^, which produce them, 

 whenever it appears that particular diseases are endemial 

 to any places. 



Returns have been made from towns, scattered along the 

 sea coast, from Nantucket on the south, to Portland in Casco- 

 bay, on the north east, and through the counties of Middle- 

 sex Worcester, and Hampshire, in a western direction. From 



Hingham, 



