I. The ticks from the Belgian Congo have been listed, and the commoner
species plotted on a vegetation map.
II. An attempt has been made to analyse the distribution of the commoner
species which play an economic role in the Belgian Congo.
The articles have been scanned in colour with a HP Scanjet 5590; 300dpi.
Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.