268 THK PLANT WORLD 



native last November, in Tumhun Bay. Male brownish-black with 

 greenish or purplish luster ; female with white on neck and breast. 



Phaethon lepturus. — Yellow-billed Tropic-bird. Boatswain. 



I have seen this bird at sea near Guam, but have not yet seen it on 

 the island. They often fly in pairs hundreds of miles from land, and at 

 night they hover over the ship as though attracted by the lights, some- 

 times darting at the mast-head pennant. At such times their presence 

 is made known by their sharp note, which resembles the creaking of a 

 pulley. They are very graceful on the wing. General color of their 

 plumage white, sometimes tinged with pink or salmon on the under parts 

 and on their long filamentous middle tail feathers. They have black 

 markings on the sides and wing coverts. 



In addition to the birds mentioned in the preceding list the following 

 have been recorded from Guam : Lams vega, a gull (probably acciden- 

 tal) ; Hydrochelidon leiicoptera, White-winged Black Tern (probably a 

 rare visitor) ; Dioviedea nigripes, an albatross (probably accidental) ; 

 Pufinus toiebrosus, the Shady Shear-water (one specimen in the Paris 

 museum); Fidigula fidigida, a duck (on migration,) one specimen in 

 the Paris museum) ; Fulica atra, Black Coot (probably accidental, one 

 .specimen, Tring Museum) ; Tringa acuminata. Sharp-tailed Sand-piper ; 

 Calidris arenaria, Sanderling ; Totanus hypoleiicus and Totamis glareola. 

 Tell-tale Sand-pipers (on migrations) ; Heteractitis incanus, Wandering 

 Tatler (on migrations). Two hawks have been recorded, but I think by 



mistake- 



[to be continued.] 



The St. Louis Exhibit of the Bureau 



of Plant Industry. 



[Those of our readers who were unable to atteurl the Louisiana Purchase Exposi- 

 tion will be interested in the following account of the botanical, horticultural and other 

 exhibits of the Bureau of Plant Industry, UuitedStatesDepartmentof Agriculture. — Ed.] 



Pathological laboratory. — The portion of the exhibit of the Bureau of 

 Plant Industry devoted to pathology and physiology consists, first, of a 

 small working laboratory in charge of Dr. Hermann von Schrenk and 

 his assistants, Perley Spauldiug and Caroline Rumbold. This laboratory, 

 in which diseased plants are shown in their fresh condition from day to 

 day, has a complete equipment of culture materials, sterilizers, culture 

 apparatus, microscopes, etc. On the walls surrounding this laboratory 

 are exhibited charts, photographs, and colored illustrations of various 

 plant and fruit diseases and the methods of their treatment. 



Diseases of cultivated crops. — One case is devoted to the principal 

 maladies of cultivated crops, showing preserved specimens of various 



