246 Dulong and Petit onthe Measure of Temperatures, [Aprit, 
Let us now take the series obtained when the surroundmg 
medium was at 20; the preceding coeflicient of (a' — J) must 
then be multiplied by a = 1:165. We have then 
V = 2374 (at — 1) ; 
Excesses of temp. or Values of V ob- Values of V cal- 
values of ¢. served. culated. 
QAO? . etibedee Deeiak 125409 sy, . wp 'cnt CLs 12-46° 
BE AGis ie Nisicinis Ggueiate BOA] (0's Sie Seale 10-36 
QIOe tetas cpaee 08 Se). 3 See eee 8°56 
POO ie iG + 104) Ci ne Sk ete 7-01 
GO rican hewn pean Gy Berens 5°68 
DAO ess tweciowtes ot - OT AOS Ore nae 4:54 
B20 rent. SFA. oe's DbDige ee. W555 See. 3°56 
LOOP eee rn Sethe to BEAR atntiony Aa nites 2°72 
DUE hae 2 n> see bie incl i? Ye ao 2:00 
Ale wrt sheath eteenen ik iA) oe tie bt cantante 1:38 
BS ewe <e -aath> halwmete DOPED i susee sleinin, alate 0°85 
2S Sie Fe, Se Ret 5a acho. dade witeanteas cis 0:39 
Let us proceed to the series obtained when the surrounding 
medium was at 40°. The preceding coefficient of (a* — 1) must 
still be multiplied by a*° = 1:165. Hence 
V = 2:766 (at — 1) 
Excesses of temp. or Values of V ob- Values of V cal- 
values of #, served. - culated. — 
BAe. < ayaiain eo awa ayy 0% TAB Qa Pian ele oS ueie . 14-44° 
BOW dar elaie.n Sex eters ntess 1198 ws. see. -- 12:06 
ZOD js "oerainjoeye yes ashe 10D). mses rie sed ere 9°97 
DEA) bidersiihy ib fen grisctwve 8°20. :nepis eine op ah sigpys' dala 
NO nis Sspsasn pres de chee 6°61 os mje, 4 OOS 
TE oe eur’ spimaie mnreaeiae # B32, noeeeserccse 5°29 
be | ES Pe OREN a Pe ee eee 4-14 
LOO) * ' seins ianapelepeapeisia Se a ona gpa miata 3°17 
BED ea.) 5:4 in einttaee egies, 2a | ee ea 2°33 
UPD sch aetn ete hernin wnt PPR, weiss Rialowimeal’ 1-61 
For the series in which the surrounding medium is 60°, we 
shall have 
V = 3-222 (a'— 1 
Excesses of temp. or Values of V ob- Values of V cal- 
values of ¢. served. culated. 
POY ».. isle < a\elnis'ata’s Pe | ac: 11-61° 
LENG chet tal ees: « OFS: tac ewinendaiene 8 9°52 
[A eae eet tears TODS»! ive) s+ alaieierwichal eats 7°71 
LEO DS heiereee bi oyereretatooteis B21. 1s voc atatohaieiet te 6:16 
be US eRe nes coe atore ABA ciciidewaee 4°82 
LOO! Spears Rik ai, Mise ee ee 3°69 
BO.) a alaiguanca'e lea PR: jr ESS | 
60 eseeesoevn eer eeee 1°88 @eenveese neon 1°87 
