TENSILE AND COMPRESSIVE STRENGTH OF MAGNESIUM. 
7. A helelei tho la kekahi 
iwaena o ke kakalaioa; a kupu pu 
he kakalaioa, a hihia tho la ta. 
8. A helelet tho la kekahi ma 
ka lepo matkai; a kupu ae la ia, 
@ hua mai la ia pahaneri ka hua. 
A pau kana hai ana ia mau mea, 
453 
7. A akai mori ti nan uel en 
karer; a karer wang uoja ta 
kajokia la. 
8. A akai mori ti nan puel 
mau, pia ta, kaparapar pan pak 
meapuki, A er pena a kaueue 
me pukat, ap majani, Me jalong 
kahea mai la ia, Oka mea pepeiao a mia en rong uaja, t en rong. 
lohe, e hoolohe ia. 
Tuz TENSILE anp COMPRESSIVE STRENGTHS or 
MAGNESIUM. 
By 8. H. BarractouGu, B.E., M.M.E. 
[Read before the Royal Society of N. 8S. Wales, December 4, 1895.] 
THE amount of experimental data available regarding the physical 
properties of magnesium is rather meagre, on which account the 
results of the tests herewith described may be of interest since 
there seems a possibility of the metal being in the future con- 
siderably used for constructional purposes. The following extract 
from an authoritative source will serve to indicate the most 
hopeful view that may justifiably be taken of the extent and 
nature of the future use of magnesium.! “Since the rolling of 
Magnesium does not offer the slightest difficulty even in such 
forms as T T or angles, round or four cornered rods, or plates 
of 1 mm. thickness, and as pure magnesium is sufficiently resistant 
to atmospheric influences, and can be polished and easily cleaned, 
it lends itself on account of its lightness and relative strength to 
the construction of apparatus required to be made of metal and 
1 Journ. Soc. Chem. Indus., Vol. v1., p. 730. 
