15 16 n 18 IS 20 21 22 23 2U 25 2G 27 'J8 29 .lO 37 SZ S3 SifMm 



Co C6 €7 C6 C3 dt C5 



Cs Co C7 Ca C9 



92% S% 1% I'To 1% 



Cs Ce €7 Cs C9 Cio Ctt Ci2. Gis Cm 



Hugo de Vries, Opera. 



Fa. P. W M. Trap impr. 



