296 REPORT—1840. 
Box «. No. 5. Class No. 6, 
ip 2. 3. 4, 
| | 
a 
Sa 
eS 
Eis , Hot or External 
Se a5 Commercial Character of Iron. Cold Character of How Cast.| Specim 
A ois ® Blast Fracture. 
no 
ge 
+ 12 | No.2. Doulais. Common bar ....)..... | Fibrous = 
Box «. No. 5. Class No. 7. Gray Cast Iro : 
4 No. 1. Calder......... nescaes eae . i 
213 1 No. 2. Pentwyn 4-3 Scrap Hot |Closebright gray) Green 7 13a 
Box «. No. 5. Class No. 8. Gray Cast Iron 
4 
a 
4 
No. 1. Calder ; 42, ? ae 
314 ‘a To ar 3 ae Ss sis Hot |Close bright gray! Green 7-168) 
No. 1. Cald o. 2. : 
215 ie Feanyn ne Gp atgeen age ei } Hot |Close bright gray] Green 7-168 | 
1 No. 1. Calder 4 No. 2. 3 h 
e 16 i Baicas ce rf oan ee Hot |Close bright gray} Green 716 
No. 1. Calder No. 2. : ea) 
fies Ap Pe caiiei vel, 3 ae Saye Hot, |Close bright pray) Gre ie : 
4 No.1. Calder No. 2. . : / 
2 18 {* p Pentwyn <a ae 4 _| 7| Hot |Close bright gray, Green 7 168% 
Supplementary Table. Box ¢ 
eieé 
Ch) a8 Protective Paint or Varnish. State of Covering after 381 days’ exposure. 
a es) 3 | 
Aa? 
¢ 14 | Caoutchouc varnish .........0e+++-| Varnish not visible ..........sssesseeees coveed : 
¢ 14 | Best white-lead paint...............| Paint visible ; oil partly gone ..........++ss0e 
¢ 15 | Copal varnish .........0s000+ seeeeeees| Varnish not visible ...... se ccececcecscccccnseene 
15 Asphaltum varnish....... aeconechicns Varnish scarcely visible .......++++«- ooccencue 
16 Mastic varnish . cimnedevessucs 
16 Swedish tar.. cellestesnans 
€ 
é Varnish not visible .......... eececcececcteresane 
£ 
¢ 17 | 3 parts wax a 2 parts ‘tallow ..... 
€ 
£ 
s 
Scarcely visible.......+.+++ssesereeseeseeeees coos 
Gone in spots. ca to adipocere Pet 
17 Coal-tar, laid on hot ....... schevene Still black and lustrous .......sessessesseeeees 
18 | Turpentine varnish............ Broker Not Visible ...sicc.cecccccscesccnnscesnsccaceme 
LSMs) Wry ol F200 ....cecedeores sccavoese| NOt VISIDIC .....dtavesscesscccecececseccccuerea 
