On the 14th of July 1893 I obtained a nest with one egg of Locustella luscinioides in the environs of Leeuwarden. This fact seems to me to be remarkable, seeing that Professor H. Schlegel in his »Vogels van Nederland” (De dieren van Nederland: Vogels, vol. I, p. 63, 1878) says: »In our country this bird is found breeding hitherto only near and on the banks of the river »Maas”, near Kralingen for instance.” The same is said by Dr. J. Ritzema Bos in his »Landbouwdierkunde”.