212 ON BIRDS FROM THE NETHERLANDS. 
is wanted. Also the collection of the eggs of our birds 
is not at all up-to-date. The old collection, chiefly origi- 
nating from Schlegel’s time, fifty at sixty years ago, is of 
no great value, as the eggs have been exposed to day- 
light during several years, most of the smaller eggs are 
very badly blown and the eggs have been preserved in a 
quite wrong manner, the eggs being left in the nests. It 
is therefore no wonder, that this collection also requires 
new material. This year about 560 eggs have been added 
to the collection. I am sorry that I must state here, that 
only a very small part of the acquisitions have been pre- 
sented to us, by far the largest part has been purchased. 
In opposition to what we read in the annual reports of 
foreign musea, our museum is presented with very few 
objects, from our mother-country as well as from our 
colonies. Yet I believe, that if people knew, how good 
we can use different specimens, we should receive more; 
f.i. how many birds of prey, which are very welcome to 
us, are shot down or caught in traps and innocently 
thrown away! Here I have the pleasure to mention the fol- 
lowing gentlemen, who kindly presented us with specimens 
for our collection of native birds: D. Bakker, Dr. J. F. 
van Bemmelen, I’. E. Blaauw, J. Boonstra, Ch. J. H. 
Dumont, R. van Eecke, Jhr. W. C. van Heurn, J. H. Hou- 
bolt, H. Leyborne Popham, Jhr. K. W. L. de Muralt, G. R. 
Peck, F. H. Verster, F. A. Verster van Wulverhorst, J. 
C. Wäkerlin, P. J. Weyenbergh, L. de Wilde and Mr. R. 
Baron van Zuylen van Nyevelt. I once again recommend 
here our collection in the kind favour of every one, who 
interests himself in our National Museum. 
In the following lines the most important additions are 
mentioned. 
Podiceps grisegena (Boddaert). 
This winter I received four adult specimens in winter 
plumage, sbot 10 December 1908, 2 and 14 February 1909 
near Texel. A young male in the first plumage with the 
Notes from the Leyden Museum, Vol. XX XI. 
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