6-69 LFV 
GG G:9F 
: 1-09 F-09 
9-19 L1G 
"4MO Tousug. 
10g 10g 
ALAg 
VG 
66 
G§ 
&& 
‘SOULSU] 
jo 
TOC TUN NY 
898 
LG8l 
9981 
GG8T 
‘oye 
JO SoSVIOAV TRNUU OY} OIV SUTMOT[OF OTL], 
‘TOAOMOY OOM “OUIT} OUO 4B UOT ‘sassoTT Aq UO pozsodor U9eq PLY] YOTILM SoUTSUE [B1AAEG 
A LYS | 6:97 
69 6G 
##1-OL 8-89 
6°02 G-64 
“4M lb Tousug, 
10g 10g 
ALN 
6 
Ol 
Gl 
iat 
*SOULSUDT 
898T 
LG8T 
998T 
S81 
GTL 8-69 
1-89 LLG 
L-L9 8-94 
9°99 6-G¢ 
yay | [bp Tousng. 
Od log 
ALOQ 
1-09 P-0S Stes FG8T 
8:09 ‘1g && S981 
8-69 L-6G 6¢ 6G8I 
1-69 “6g Siig 1981 
“YAO PUNE | -soursug 
og 10g jo oweq 
xuaq TOq UI NT 
V9 V-69 
6:69 6-GG 
G-69 G-6G 
“69 6-69 
“qMO *Joysng. 
0g Jog 
ALA 
0g OS8I 
OV 6F8I 
GP 8FsI 
ii LYV8I 
“‘SOULSUGL 
go oe 
IoquIn NT 
‘sqlodny IIIyy YO 
‘Ioyjour ye ouMOIG “AP Aq po.teqstsot 
i ad AN 44 P [ 
§T 
SI 
ia! 
1G 
*SOULSUAT 
jo 
oq UIT 
PS8T 
S981 
681 
Tg98T 
"oqVq 
6-69 169 6B OS8T 
6-09 9°0¢ 06 6F8T 
8-19 61S LT 8P8T 
6-29 8-69 LT LY8T 
44 | b PUSNE | -soursaq 
Iog 0g jo -oneq 
aung ToquIn Ny 
|| ‘StLOT}BA.TOSqO 
AT YUOUL sty WOT, poonpop S‘sesvioae [eNUUL pAOYe SUTINTOO SUTAOTIOF OIL], ['ouMoa«gq 
writ “ay Aq ‘ggg ‘Avyy [QUN penuyuos pue ‘yPFeT ‘Areniqeq ul ‘poousurutoo 
SUM !][VMULOA Jo syed yeryueo UT souTUL WO—|AToAISNTOXe Jou ynq—ATISOUL poy1oM 
SOULSUY-Wee4G Jo ooUVUTIOpZIed PUL SIOQUINU OY} 0} SUIZLIOA ,.Sq10doy] Jo Soles puodes VW 
+ It comprehended several engines in Devonshire as well as in Hast and 
* The Cornish Engine Reporter. 
West Cornwall. 
I am indebted to Mr. Browne’s courtesy for the use of all his papers. 
d from corresponding periods in column 4. 
*x*® Phillips and Darlington, Records of Mining and Metallurgy, p. 63. 
+ William Browne—a native of London, long resident at Saint Austell— 
was born in 1801. 
§ Observations on engines in Devonshire, have not been used in ob- 
taining these averages. 
q Compute 
