( 109 ) 
Mr. M. Barthels and especially also of Dr. J. C. Koningsberger *) 
have supplied many data, particularly as regards the names of insects 
found in the stomachs of Javanese birds and the animal food of 
“useful” and “harmful” birds; on the other hand our knowledge of 
the significance of various species of fruit-eating birds for the distri¬ 
bution of seeds and fruits in Java is still extremely limited. 
At any rate, methodical observations on this question 
are almost completely wanting in the literature for 
Java (with numerical data about the number and botanical origin 
of the seeds and the scientific name of the birds). For only two 
Javanese plant species [. Lantana Camara L., Myrica juvanica Bl.] 
special data are to be found in the literature a ). 
I have therefore attempted to ascertain as well as possible at least 
the natural order and the genus of the seeds, collected by Mr. Barthels. 
Thanks to the method of labelling employed, the further deter¬ 
mination of the species can take place later, when more time and 
material are available. I have contented mysejf in most cases with 
the probable determination of the plant-genera. 
Meanwhile germination experiments, made on the spot, remain 
very desirable for the future. In such experiments one portion of the 
seeds found in birds stomachs, will have to be sown at once, while 
the other portion is preserved with the seedlings for botanical deter¬ 
mination. For the collection, which has now been examined, such 
comparative germination experiments are still wanting, because 
Mr. Barthels could not afford the necessary time for them. 
Koningsberger, J. C., Aanteekeningen over inaaginhouden van vogels (in 
Teijsmannia XIX. (1908) p. 88-99). 
2 ) Ernst, A., Besiedelung vulkanischen Bodens auf Java, etc. (in Karsten & 
Schenck, Yegetationsbilder. I. Reihe, Heft 1 u. 2. (1909) IV. Text von Tafel 9 
und 10). 
Koorders, S. H., Contribution N°. 1 to the knowledge of the flora of Java § 1. 
On the oecological conditions, means of dissemination and geographical distribution 
of the species of Myricaceae, growing wild in Java, especially in the higher 
mountains (in Kon. Akademie v. Wetenschappen in Amsterdam, Verslag derGew. 
Vergadering d. Wis- en Matuurk. Afd. 12 Maart 1908. p. 645—652 and the literature 
quoted there; also the English translation in: Kon. Akademie v. Wetenschappen 
Amsterdam. Proceeding 24 April 1908 p. 674—680. 
Valeton, Th., Distribution of fruits by animals. (Dutch) in Teijsmannia. IV. 
(1881) p. 205—222. (. Lantana Camara L., p‘. 217). 
Cordes, H. J. W. The djatiwoods of Java. 1881. (Batavia) p. 81—83 (Dutch). 
This deals with the distribution of the fruits of a shrub ( Lantana Camara Linn.), 
which was introduced into Java from S. America about 1850 and now covers 
many thousands of acres in Java. See also the literature mentioned there: Natuurk. 
Tijdschr. Ned. Indie XXXI. p. 287 and Tijdschrift voor Nijverheid en Landbouw 
Ned. Indie XXII. p. 75. 
