A WEEKLY 
ILLUSTRATED JOURNAL OF SCIENCE. 
“© To the solid ground 
Of Nature trusts the mind which builds for aye.”—WORDSWORTH. 
No. 1542, VOL. 60] THURSDAY, 
MAY 18, 
1899. [PRICE SIXPENCE. 
Ree as a Newspaper at the General Post Office.] 
[All Rights are Reserved. 
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