Sentence:  [...] As to the actual and present state of the school, it has experienced since this 2 1/2 or 3 years a perceptible decline, on one side for want of European youths, and on the other thro the continual <WSD>drawths</WSD> from them, as whenever these youths had but half concluded their studies, they were included and placed directly under the military, [...] 
Meaning of the word marked with <WSD> tags:  That which is draughted or drawn; a draught.