424 
ON THE 
CONTRACTION AND EXPANSION 
OF ICE 
TABLE OF OBS 
ERVAT 
IONS, (ON ICE 100 FEET LONG), FEB 
h RUARY, 1860, 
—— 
Average | Average 
No.| D Tem: | | 
ate. | Hour. pera ete ee 
ew ure, | 3 oft? Roa.| _P& 0° no = 
nip np ian aisle per 100. paroee = Remarks. 
1j)Jan. 29 |! P.M. 39° fh Tae — wet 
2 eee a 3 in. ] .0110 | .00034 — 
Che: 4 A; |. 
Area 10 all -0120 | .000353 po Nw 
5 66 9 A.M. o7 3 5 -0120 00035: - 00000353 W 
“112.0 Siac "0000 | L000338 .00000353 | Ww 
8 «sc Say 81 “< -0090 0003 7 |.00000327 w |C 
Boer Moun SO a at -000821 |.00000820 | Ww lear. 
alr Gus Sa ie “0105 | Brae -00000322 | w 
LO ee adlaaie Pei Pall bess -DO0318 || ONO ay 
12 “ 12.380 19 “ec F 0075 6 WRT - 000003821 Ww St 
13 ‘ 2 P.M. V7 cc -0065 anes - 00000341 N surong wind. 
ae el Nee A Gasee | ocnooreal ioe 
ip| aes Shares | ae ail) rani aeee 00000853 |W |Blowi 
ace 12.0 9 im. } -0030 000333 |. 000357 | N EIS wing a gale, 
17 ‘ 2P.M. 9 G -0080 ieaneee - 00000333 E bie: 
Tey ee 8 « a) 3 |-00000333 | N E Light liv 
“ce zs ‘ -0027 | .nonas4 |.oa000 1nd. 
- ish 7.80 4 @ .0020 eH 00000387 | NE 
a Ming eee lb aul eran OT GR ied BRMRER EE eS 
Ay age ey he +f 20000 | reese | ane BE |Clear. 
a iB li“ uf a SPT Wh Team iar Se NE (Average contrac- 
3PM : eee ae tion .000008; 
25 Tr ohttc 16 ¢ -000357 |.0 NE 36.) 
So geal is De ay Soe as ane 00000357 | = 
on Feb aay 12 & -0050 "000385 - 00000375 E 
cap eae Wa agen Moose PRN Reece fee 
Za, Ee De TUES Me 
Babe aula lieat “oo40 | [000386 |.00000286 | x 
ail 10.30 | 48 |bsi “0040 | .000250 .00000286 | x E |Snowi 
301“ ESO Mas ain. | .0050 | .0002 Maio Vee eS 
BA ic Ie Bly, yallatiill Waren SE Ma 
35 77 9.30 fe 16 “se .0060 teen - 00000308 Ww 
33 Reb igh a hliies RN eer ft 
Be eb. 3 |3.30A.M! 18 {6 : 0026 |. ona .00000250 f ... IC 
38 “ee ie 18 a 0045 0 - 00000800 i Galate 
See Na ee elite pe ie Nad Ba 
4o/Heb; 4/180 Oe alee ener 00600275 | 8 
a) i fbaat | 2 | RUN ahe es GU Wa 
Fate ge Eb “0070 | “on0308 |-00000808 | = 
iA a ¢ 26 ka .0070 ay 00000308 | s E |Snowi 
45 oi 2.0 98 “ .0080 | . 000308 anon i ng. 
AG “ 1 P.M. 30 «. .0090 000382 - 000003808 Cc 
AN « 3 : 30 « .0105 “pn035q 2 Sete oe alm. 
48 a 7 « 28 & “ane Leas SON « |Ther. 609 i 
« Ba tls 2 On o0Rsy 1.00000 be - 60° in the sun 
“c -0 0357 .0 e 
solFeb ma | | 0080 | 0008 0000357 
Sele AM. | 26} | “ -0080 “poos08 |-00000308 is 
‘ i agree “0080 | ‘900302 |. 308} s 
BL suielaaea See [hone Moeaaltontbes z 
54 GG : P.M. 84 «6 0110 nae eee S Snow 
eae unike ies Bal os 0120 | 1900353 |. Heed cn INeeerEa 
« 33 | Bea) Conese eaves | ae age expansion 
F Sipe 36 (| CS ‘0115 | "900. .00000353 | s E -00000314. 
Es eb.6 (2AM. | 37 | « SEE MIN cash ar 
F re 5s ‘ re iret ta Rae ROM Reve: a i 
a SB er ee Faisal anna | Water on surface ice 
Snes BaMe| es0 < o110 | “oooada |-coo00s44 | Ww = 
62 “ Bigs 98 “ 0115 R orice - 00000344 WwW 
Ba ae olen bab | Repel Diop | /eonsee |connobsey far 
64 eae Bai RUM ee Heiner ep 
és| ; A.M . 24 if 070 Ria 1 |.00000291 | s w 
¢ 95 0 006291 |.00000 3 Ww 
COM ay & ae tte 00301 |-o0000201 | s Ww 
68 6 z , 32 ‘ec ORB | Gd rod00 wei 
2.0 32] 0090 | aaa ae 
0110 000344 aeones sw 
