PHYTOGEOGRAPHICAL 



A. Orological, Geological and 

 Meteorological 



CHAPTER I 



GEOLOGICAL AND OROLOGICAL NOTES. 



Introduction. 



When preparing my journey to the three Leeward Islands I could 

 only avail myself of the Geological and Orological data from 

 K. Martin, Bericht ilber eine Reise nach Niederlandisch West 

 Indien,. Leiden 1887. 



At the time of my visit the Government was carrying out trian- 

 guiations on the three islands and also preparing a topographical 

 map of Curagao. 



Besides a general sketch-map of the roads on Curagao, given me 

 by Mr. Zelle, Head of the Public Works Department there, and 

 a sketch-map of a part of Aruba, given me by Mr. R. J. Beaujon, 

 I had no means of orientation in the three islands. 

 The lack of maps made itself still seriously felt in 1910 (i. e. 23 

 years after the publication of Martin's book); hence my topogra- 

 phical determinations are- mostly based on local information. 

 During the preparation of this flora the Topographical map of 

 Curagao, on a scale 1/200.000 has been finished; this excellent 

 map has still been helpful. Through the kindness of Prof. Grut- 

 terink I obtained a map of Aruba after the measurements of 

 captain Lens. 



In order to get an impression of the size of the different islands 

 and of their mutual situation I used the map by H. M. van Straate i). 



1) West Indie, Curafao, Bonaire en Aruba 1 : 300.000 samengesteld uit versohil- 

 lende bronnen door den Luitenant ter Zee 2e klasae H. M. van Straate, 'sQraven- 

 hage. Ministerie van Marine, afd. Hydrographie. Januari 1899. 



