75 Aves. Subject Index. — Ethology. 5819 
Report on bird-ringing at Rositten in 
1911 ; Thienemann, 1373. 
Report on bird-ringing in Heligoland 
in 1912; Weigold, 1480. 
Bird-marking in the station at 
Haubinda, Sachsen-Meiningen ; Keil- 
hack, 699. 
Eine Markierungslinie im Schnepfen- 
zuge ; Biitow, 236 : Ringversuch mit 
Paras major ; Hagen, 540. 
Report on bird-marking operations 
in Hungary in 1913 ; Schenk, 1198 ; 
Szeots, 1358. 
Results of bird-marking in Holland ; 
Oort, 997, 1000. 
tlber die im Sommer 1911 in Schwe- 
disch-Lappland vorgenommene Mar- 
kierung von Archibuteo lagopus ; 
Jagerskiold, 672. 
Bird-marking in Finland ; Brander, 
187 ; Palmen, 1009. 
Bird-marking in Russia ; Loudon, 
811 ; Rossinskij, 1138, 1139. 
Report on the work of the American 
bird-banding or bird-marking associa- 
tion for 1912 ; Cleaves, 282. 
Marked Gulls in Finland ; Brander, 
186. 
On the results of marking Lams 
ridibundus in Bavaria ; Besserer, 139. 
Scolopax rusticola in Gatschina 
gezeichnet, in Istrien und Pfalz ge- 
schossen ; Rossinskij, 1136. 
Ringed Stork returning to its breeding 
place ; Thienemann, 1377. 
Swallows ringed in Staffordshire 
and Ayrshire re-captured in South 
Africa ; Witherby, 1530, 1532. 
Markod Crows in Finland ; Brander, 
188. 
Flight and other Methods of 
Locomotion. 
Experiments on the “ vol-plane ” of 
birds and note on the rising flight of 
birds behind a ship ; Idrac, 645, 646. 
On the flight of birds known as 
“ vol k la voile ” ; Earpen, 696. 
Muheloser Segelflug der Vogel ; 
Lilienthal, 787. 
Der Segelflug der Vogel ; Wiesels- 
berger, 1514. 
The problem of the sailing bird 
Nichols, 955. 
Velocity of flight of migrating birds ; 
Stubbs, 1332. 
Aeronautische Experimente fur die 
Hohenbestimmung fliegender Vogel ; 
Lucanus, 819. 
Concerning the flight of Gulls ; 
Forbes, 440. 
The flight of Sula bassana ; Gurney, 
524. 
Flight of Humming-birds ; Murphy, 
939. 
Parental Relations. 
Some records of the feeding of nest- 
lings in Ohio ; Jones, 684. 
The habit of birds of removing 
matter from the gapes of nestlings ; 
Owen, 1005. 
Erithacus rubecula a foster-father to 
Pams ater ; Rembold u. Oberhauser, 
1096. 
Parental relations of Falco pere- 
grinus ; Heatherley, 569. 
Sexual Relations. 
Courtship and other sexual relations, 
a general account; Py croft, 1071. 
Remarkable breeding habits among 
British birds ; Read, 1082. 
Courtship and display in British 
Diving Ducks ; Millais, 908. 
On tho question whethor Tadorna 
tadorna pairs for life ; Momsen, 923. 
Neckereien der Raubvogel nebst 
Gedanken iiber die Entstehung ihrer 
sekundaren Gcschlcchtsuntorschiede ; 
Sohmidt-Bey, 1208. 
Einige allgemoine Botrachtungen tiber 
die Fortpflanzungsweisen ; Detmers, 
357. 
The courtship and display of Lyrums 
tetrix ; Selous, 1236 : Otis tarda ; 
Trevor-Battye, 1410 : Emberiza 
citrinella, Motacilla lugubris ; Rope, 
1127. 
Nidification (General). 
On Birds which use old nests for a 
second brood ; Morris, 928. 
On the numbers of birds reared as 
compared with eggs laid ; Dunlop, 390. 
