Royal Socieip^ 3d9 



Having in a former paper shown that,' cotitnary to a oorattionly 

 rec^ivfid opinion, the tertipferatul-e of ' the human body, is mea- 

 sured by a thermometer placed unddr the tongtif", is not a constant 

 one* tlie author has. resumed the inquiry, and givcS) in the present 

 p^per, the results of numerous observations made with a particular 

 instrument constructed for the purpose, admitting of minute accu- 

 racy (each (hgree of the scale being divided into ten parts), and 

 Ay.ben used vvitli the precautions pointed out* affording satisfactory 

 indications in many problems which may be proposed relative to the 

 temperature of man, &c., and confines himself to a small number,; 

 offering the information he brings forward only as a preliibinary 

 qontribution in aid of their solution. it <,ii ^uqoyao-ioim yili 'io bin 

 .; The paper is divided into seven sectioii$^jrt> m h^y^nsiiiii .s^JfT^fnoh 

 , < The first treats of variations of temperature during the tWeflty-four 

 l^Qurs. The author finds from his observations, that the temperature 

 i« highest in the morning, on rising after sleep; that it continues 

 high, but fluctuating, till the evening ; and that it is lowest about 

 midnight, ranging on an average from 98'7 to 97'9. ;i modr, ^iiii/cil 

 , The second, of variations during the different seasons* ^n'Rhfe'Se^jMSt 

 finds, bear some reUition to the temperature of the air, but less than: 

 nught be expected; which he attributes .to, the. m^owty of the .ob-^. 

 servations having been made within^(^flWi>WBidlaifJcj|?fiunistance!9iplo 

 culiarly favourable to uniformity. ,' ; ■ r ,■ > i • : 'xin 



TJie third, of the influence of active exercise on the temperafctti'e^ 

 The effect of this, when not carried to the length of exhausting, fft!4 

 tigue, he finds to be elevating ; and that the augmentation iSj wit|jij»; 

 a, certain limit, proportional to the degree of muscular exertion.;; nub 



The fourtli, of passive, such as carriage exercise. The effeefcjfilS 

 this in a cool air, contrary :tp;thpt)Ot^(lJl^^i»'ftl^hin^g^e^,ii(j^ng>j^^pl*^A 

 appear to be lowering. .VV .if-n' nr 'fo jij^rf lijOor.S' odt ot diOOO^' 



The fifth, of abstinence from all exercise in a cold atmosphere. 

 This he finds to be depressing in a still greater degree ; sitting in a 

 cold church has occasioned a reduction of temperature frojij loi'fei!' 

 2°, the air of the church being from 42° to 32°. it .f>-l[jv/ 



The sixth, of sustained attention or exertion of mind, Thisvvould 

 appear to have the effect of raising the temperature, but in a;Bauc.h 

 less degree than bodily exercisei .foi-jim silt irult t 'Kjilfm; 



The seventh, of taking food. JtinfeukiM appear that a ligjbi|||oe^if 

 such as breakfast, alters very little the temperature, whilst ?^JlMBil^t 

 meal, such as dinner with wine, tends to lower it. »♦ ! jdi 



The conclusion drawn by the author from his observations} <!^*^ 

 sidered in their greatest generality, is, that tho temperature of mart 

 is constantly fluctuating within a certain limit; regularly during 

 the twenty-four hours; and irregul^rl^rjIocpwikigiiteriMa^tppefftMfttt^ 

 of certain disturbing circumstances^, mr'. u[t ni i> .//oKnf ?\ rf,i7.'(r!'^ io 



Should multiplied observations givii similar f^sufe, he ihfer^ Ifilit 

 they will admit of many applications, both as regards the regulation 

 .oigya adi lo mAa adi lo saodi ui hiUi ,i»(a uili 



