CONTENTS. 
Page. 
LETTER OF TRANSMITTAL secees sees cece cece sisictajnu o'eardlee'sis cie'siwecieewiarrselesciaies 3 
PREFATORY LETTER ....... sidivitle Sede Teta wees emaety eereceteccnvesseceses 5-6 
FIRST (PART: sc ck esiwsnciweceemet ce swsesswices cata vis meeresep ane dese woe acess 7-49 
Bird Migration in the Misstasippi Valley: 
Introduction. oc. 2 oie sens ciececeeccciecce sisewesicn siet sviceue eldseesnass 9-10 
Theoretical Considerations ....- aasieee is slascinje Sis iae Satereisiele a mibleieeGmeiwae ee 11-12 
Speed at which Birds Migrate ............----. Seipicpeicwistemrerwsigate Asia's 12-16 
Relation of Migration to Barometric Pressure and Temperature .-.-.. 16-25 
A Study of the ‘Bird Waves” which passed up the Mississippi Valley 
during the Spring of 1884 ........-.2. eee eee e eee eee eee wenn 25-33 
Synopsis of Migration at Saint Louis from January 1 to May 27, 1884. 33-37 
Progress of Vegetation and Awakening of Animal Life in the Missis- 
sippi Valley during the Spring of 1884 ..-........-.-.--.---0---0 
List of Stations and Observers for 1884 .......-2.-.---0 een ee enone ee 
List of new Stations and Observers for 1885 
Form of Schedule used in 1885 ...... 2-2-2... 2225 ceo 2 cece eee e ee eee eee 
Notes on the Migration and Distribution of each Species reported as in- 
habiting the Mississippi Valley .........---..--22+0 ceceee ceee wees 46-49 
SECOND PART...---..----- fee ene cee ree nnn neces somone sawens cnnnees 
