296 Mr. T. Ayres on the Ornithology of Transvaal. 
A rdetta podiceps . 
Males. 
Bill from 
Wing. 
Tarsus. 
Middle toe s. u. 
forehead. 
in. 
in. 
in. 
in. 
Adult, R. Gaboon .... 
5-40 
1*60 
1-60 
2-00 
Adult, Transvaal. 
5*45 
1-60 
1*65 
1*90 
Adult, Transvaal. 
o*65 
1-65 
1-50 
1*95 
Nearly adult, Transvaal 
5-20 
1*60 
1*40 
1-90 
Immature in change, 
Transvaal. 
555 
1*60 
1-50 
2-05 
Adult, Transvaal. 
5-60 
1*70 
1-65 
T90 
Females. 
Adult, Transvaal. 
5-55 
1*60 
1-60 
1-90 
Adult, Transvaal. 
5*05 
1-50 
1-50 
1-90 
Nearly adult, Transvaal 
5* 05 
T50 
1-45 
1-90 
Immature, Transvaal . . 
5-10 
T60 
1*60 
1-85 
Immature, Transvaal .. 
5-20 
1-60 
1*55 
1-70 
Adult, Transvaal. 
5’00 
1-60 
1 ‘55 
1-80 
Ardetta minuta. 
Males. 
Norfolk, adult. 
6*15 
• • • • 
1*50 
T90 
Holland, immature .... 
6*00 
T65 
1*60 
1-75 
France, adult . 
6-05 
1-60 
1*55 
1*90 
Malta, adult. 
6-20 
T60 
1*60 
1-95 
Malta, adult. 
6-10 
1-60 
1*65 
1-90 
Tunis, adult. 
5*8o 
1-70 
1-60 
1‘90 
Egypt, adult. 
6-05 
1-80 
1-60 
2-00 
Syria, immature. 
6-00 
1-70 
1-65 
1-90 
Turkestan, adult. 
6-20 
1-85 
1-65 
1-95 
Females. 
Norfolk, adult. 
5-70 
1-40 
1-80 
Sussex, immature .... 
5-55 
1-65 
1*45 
1-90 
Italy, adult. 
5*85 
1-70 
1-60 
Algeria, adult . 
5*95 
1-75 
1-60 
2-00 
Algeria, adult. 
5*55 
1-60 
1-50 
1-90 
Egypt, nearly adult.... 
5-90 
1-60 
1-40 
1-80 
Transcaucasia, nearly 
adult. 
5-50 
1-60 
1-50 
1*90 
J. 
H.G.] 
