Boundary question between Nicaragua and Costa Rica.
Bourbourg, Brasseur de, Abbe, on the Teo Amoxtli.
Brazil, migratory butterflies of.
Breadfruits.
Bromelia.
Bruce, on whirlwinds in Africa.
Buccaneers.
Bugs. injecting poisonous fluid.
Bullock, Mr. W., on the use of rattles in Mexico.
Bull's-horn thorn. wasps attending glands of.