tober, 1878. 
_ TERMS—SINGLE NUMBERS, 35 CENTS. 
CONTENTS. 
_ How THISTLES SPIN. W. F- Beal........-+ 
_ PLANTS USED BY THE INDIANS OF THE UNITED 
= STATES. [Concluded.] Edward Palmer.... 646 
THe  MAPLE-TREE BARK-LOUSE. ip A. 
Smith kara GSS 
_ THE FIRE-FLIES AND THEIR PHOSPHORESCENT 
_ PHENOMENA. Mrs. V. O. King.....essese 662 
_ PHYSIOGRAPHY. C. Lloyd Morgan . 665 
- RECENT LITERATURE 682 
: Brehm’s Animal Life.—Gray’s Flora of North Amer- 
_ i¢a.—Graber’s Insects. —Recent Books and Pamphlets. 
~McCALLA & STAVELY, 
PUBLISHERS. 
PRINCIPAL OFFICE: 
237-9 DOCK STREET, PHILADELPHIA. 
v New York 
Vol. XII., No. 10. 
YEARLY SUBSCRIPTION, $4.00. 
GENERAL NOTES. oescc ccs tee sci veetsens cers 
Bot: —The Grasses of Mexico.—The C nnection 
of Bacilli vith Splenic F ever. — Ascent of Sap i in Trees. 
ete = 
ology. an wo- headed Snakes. Big eo Coloring in 
Ta reseed —Fresh-water Mussels v : 
a Ce EEN ose aad a 
Sig od and Travels.—British Association. ‘Sic as 
wade ‘homson’s Address.—The Arabian Desert of i 
pt. s 
Microscopy. — National eat Soe! wee aae Ski 
Microscopical Directory.—Exchanges cee 
SCIENTIFIC NEWS, ......- 
PROCEEDINGS OF SCIENTIFIC SOCIETIES . «+» e+ + nes 
706 
BRANCH OFFICE: 
44 esas Se 
