38 RESEARCHES ON THE NITROGENOUS NON-ALBUMINOUS 
the researches of v. Gorup-Besanez 1 who detected, besides 
asparagine, also leucine, glutamine, and tyrosine in vetches 
grown in the dark, the presence of leucine in the same plants 
having been confirmed by A. Cossa. 2 Moreover, E. Schulze 
and J. Barbiéri detected tyrosine and leucine in potatoes, 3 
isolated amidovaleric acid and phenylamidopropionic acid from 
the shoots of Lupinus luteus 1 , the latter compound occurring 
also in the young plants of Soja hispida, 5 and separated allan- 
toin in the shoots of Platanus orientalis 6 . Furthermore the 
same author and E. Bosshard 7 found allantoin in the young 
buds of Acer pseudoplatanus, and Acer campestre, and also in 
the bark of Aesculus hippocastanum, and Acer pseudoplatanus ; 
they 3 discovered vernin in the young plants of Vicia sativa 
und Trifolium pratense. Again in combination with J. Hunger- 
bühler he found vernin in Secale cornutum 9 , with E. Steiger 
and E. Bosshard in Medicago sativa 10 , and in conjunction with 
A. von Planta, in the pollens of Coryllus avellana and Pinus 
sylvestris 11 . Finally, the same author and E. Steiger 12 dis¬ 
covered arginin in etiolated lupine and pumpkin shoots. Besides 
these, the author found cholin in the etiolated seedlings of 
yellow lupines, pumpkin 13 , and soy bean 11 . In short, we are 
chiefly indebted to E. Schulze and his assistants, for the en- 
i Berichte der Deutschen chemischen Gesellschaft. Vol. VII, p. 146 and 
569 ; Vol. X, p. 780. 
2 Gazetta Chimica Italiana. VI, p. 314. 
3 Landwirthschaftliche Versuchs-Stationen. Vol. XXIV, p. 167. 
4 Landw. Jahrbücher. Vol. XII, p. gio. 
5 Zeitschrift für physiologische Chemie, Vol. XII, p. 405. 
6 Bericht der Deutschen chemischen Gesellschaft, Vol. XIII, p. 1602. 
7 Zeitschrift für physiologische Chemie. Vol. 9, p. 420. 
8 ,, ,, ,, ,, ,, 10, p. 80. 
9 »» »» »» 1» », IO » P* 83. 
10 Landwirthschaftliche Versuchs-Stationen. Vol. 33, p. 103. 
11 Zeitschrift für physiologische Chemie, Vol. 10, p. 326. 
12 »> » •> » > », • P- 43 - 
*3 1» » >1 », »> • Ir > P- 3 Ö 5 ' 
14 ,, ,, ,, ,, », » 12, p. 405. 
