As questions of Science compass all limits of nationality, and are of universal interest, a periodical devoted to them may fitly appeal to the intelligent classes in all countries where its language is read. The proprietors of NATURE aim so to conduct it that it shall have a common claim upon all English-speaking peoples. Its articles are brief and condensed, and are thus suited to the circumstances of an active and busy people who have little time to read extended and elaborate treatises. SUBSCRIPTIONS TO "NATURE": Yearly ... ... ... ... 28_s._ | Half-Yearly ... ... 14_s._ 6_d._ Quarterly ... ... ... 7_s._ 6_d._ _To the Colonies, United States, the Continent, and all places within the Postal Union:_ Yearly ... ... ... 30_s._ 6_d._ | Half-Yearly ... ... 15_s._ 6_d._ Quarterly ... ... ... 8_s._ P.O.O. to be made payable to MACMILLAN AND CO. OFFICE: 29 BEDFORD STREET, STRAND Transcriber's Note: Minor typographical errors have been corrected without note.