ILLUSTRATIONS 



PAGE 



GOLDENROD BaLL GaLL (TrYPETA SOLID AGIX IS FiTCH) . . I20 



Hackberry Petiole Gall (Pachypsylla venusta Osten 



Sacken) . . . . . . . . . .120 



Hackberry Nodule Gall (Pachypsylla celtidis-gemma 



Riley) 121 



Hackberry Blister Gall (Pachypsylla celtidis-vesicu- 



lum Riley) . . . . . . . . .121 



Hackberry Nipple Gall (Pachypsylla celtidis-mamma 



Riley) 121 



Hackberry Melon Gall (Pachypsylla celtidis-cucurbitm 



Riley) . . . . . . . . . .13.2 



Witch Hazel Cone Gall (Hormaphis hamamelidis Fitch). 122 

 Spiny Witch Hazel Gall (Hormaphisospinosus Shiner) . 123 

 Cock's Comb Elm Gall (Colopha ulmicola Fitch) . . 123 

 Sumac Tomato Gall (Pemphigus rhois Fitch) . . -123 

 VovLAR Stem Gall (Pemphigus populicaulis Fitch) . . 124 

 Hickory Louse Gall (Phylloxera cary^caulis Fitch). 124 

 Wild Cherry Pouch Gall (Acarus serotin.e Beuten.) . 124 



SUPPLEMENTS. 



To No. I. 



A GENERAL GUIDE TO THE AMERICAN MUSEUM OF NATURAL 



HISTORY. 



The American Museum of Natural History: South Facade 

 The Reading-Room. No. 503 ..... 



Fifth Floor (Plan) ..... 



Hall of Fossil Mammals. No. 406 .... 



Fourth Floor (Plan) ....... 



Morgan Hall of Mineralogy. No. 404 

 Loubat Hall of Mexican and Central American Arch.'E 

 OLOGY. No. 402 ....... 



Hall of Geology and Mineralogy. No. 408 



Third Floor (Plan) ....... 



Termite Nest, Three Feet High. In Hall No. 307 



10 

 1 1 

 12 



13 

 14 



18 

 20 

 21 

 22 



