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THE SUMMER SCIENTIFIC SCHOOLS.

The Peabody Academy of Science at Salem, Massachusetts, will open the
second session of its summer school of biology July 6, the course to
continue for six weeks. Four days in each week will be given to
lectures and laboratory work, and one day to a dredging expedition.
Entomology, together with spiders, crustacea, and vertebrate anatomy,
will be the especial subjects of study this year, and as usual the
advantages enjoyed by this institution for studying marine zoology will
be fully utilized. Dr. A. S. Packard, assisted by Messrs. Emerton and
Kingsley, will have charge of zoology, Mr. Robinson of botany, Rev. Mr.
Bolles of microscopy, and Mr. Cooke of the dredging parties. Fees, $15,
or for lectures only, $5. Board $5 to $7 weekly. Application should be
made to Dr. Packard.

A four weeks' school will be opened at the State normal school, West
Chester, Pennsylvania, beginning July 11. Zoology and botany will be
taught by Prof. M. W. Harrington, geology and physiological chemistry
by Mr. V. C. Vaughan, and mineralogy by George G. Groff, all these
gentlemen being connected with the University of Michigan. Elocution
and industrial drawing will also be taught. Fees are for board and
tuition $30, and tuition alone $12. Apply to Mr. George L. Maris,
principal.

Scientific excursions seem to be the order of the day. Mr. Woodruff of
Detroit has planned one to make the tour of the world; and Mr. J. B.
Steere of Michigan university, who spent several years in a journey of
scientific character, says: "The expedition will probably leave New
York in October or November next, going directly to the mouth of the
Amazon, where some time will be spent in making collections in natural
history. The island of Marajo will be the principal field for this
work. Rio Janeiro will probably be called in at, on the way to the
Straits of Magellan, which will be reached in January or February (the
summer season there), and a stay will be made for the purpose of
collecting. The expedition will then make its way northwest, cruising
among several of the rarely visited groups of islands in the central
Pacific, where there is every opportunity for making large and valuable
collections of sea shells and corals as well as of the myriads of other
and rarer things brought up by the dredge. Some stay will probably be
made in New Guinea; but the next great object of interest will be the
island of Borneo. It is supp