ON THE ACTION OF AIR AND WATER UPON IRON. 4Y 
Second Course of Experiments. 
Taswr VII—Box'e. No. 5, containing Specimens of Cast and Wrought 
Iron immersed in clear fresh River Water. 
Sunk and moored in the clear, unpolluted water of the River Liffey, above the Tidal Limits, 
~.at the Royal Military Hospital, Kilmainham, on the 13th of January, 1840, at one o’clock 
p.M.. Weighed again and removed on the 14th of January, 1842; hence immersed 
732 days. 
Box e. No. 5. Class No. 1. Scoteh Cast Iron. 









_ 
_— 
. 
a i | | a | | | | | S| 
ie Ce Pea a 5 
5 a Ow i) i= 2 ao : ¢ a 
a3 Sy ge | 333 Belme smoke) saf 5.48, % 
ae ag ne | a> |2s See ate esloe8 [ey mas 
o bs} i 7 Ci 
7] = 8 Parc} “2 on b> Sul oz O'R Sea 2'R 
AS is) oa saa AY lass) ube | ae He os ae 
593 n= Phat Hilson] SS0}Sk}] SE | Hx E 
‘Sa 28. a2 | een |eh (oes) cseles| &s (34 a6 
:a rah oe |oee|SE| 38°] 38S) 8°) 8° |o* Or 
o ic} nim 
Z BA TERE S [Ae [A 5 
i | ee 
re 42940 12s 86 | 1:228) 0-138) O°} 0-131) 0- | Uniform. 
1 | 48493} 43415! 78 | 1-°114} 0°125| 0: |.0:641}.0- | Pitted. 

Box A No. 5. Class No. 2. Welsh Cast Iron. 
0- 
0: 
55 
76 
42430 
42847 
Uniform. 
Pitted. 
42485 
42923 1:085| 0°122| 0: | 0:886 


a a 0- | 0-692 




Box e. No. 5. Class No.3. Staffordshire Cast Iron. 








5x5x1_ |43457| 43386! 71 | 1-014| 0-114] 0: | 0-573 0- | Pitted. 
661 5xX5xX1. | 44095 |44050| 45 | 0-642] 0-072] 0: | 0-796| 0: | Pitted. 
Box e. No. 5. Class No. 4. Irish Cast Iron. 
e7| 5x5x1_ |43024| 42935 | 89 | 1-271] 0-143| 0- | 0-409|0- | Pitted. 
e8| 5X5 X1 | 43835 | 43768] 67 |0-957| 0-107} 0- | 1-322|0- | Pitted. 





Box e. No.5. Class No 5. Mixed or alloyed Cast Irons. 





te 9 °5X5X1_ | 44125 | 44060) 65 | 0-928) 0:104) 0- | 0-647) 0- | Pitted. 
}el0} 5x5 xX 1 | 43581 | 43525 | 56 10-800) 0-090) 0- | 0394/0: | Pitted. 
ell} 5X5 x1 | 42975) 42907 | 68 | 0-971} 0:109) 0O- | 0°705| 0° | Pitted Plumb. 
Box e. No. 5. Class No. 6. Standard Bar of Wrought Iron. 

corres 



Fibre locally de- 
veloped most! 
¢ 12) 51375 X3x875 | 24426 | 24384 | 92 
hs on the ends. 

2:041) 0:230| 0: | 0-225 of 

Box e. No. 5. Class No.7. Gray Cast Iron. Skin removed by Planing. 

e183 5x5x75 | 38922 | 33846 | 76 |1-169| 0-131 0: 1:942 | 0- | Uniform P. 

