NZG

Those we now call Karo or Karo Batak were declared an objective of Dutch missionary work for political reasons, because of their proximity to the Muslim and anti-Dutch Acehnese (Kipp 1990). The expansion of the Rhenisch mission in that direction was therefore not encouraged by colonial authority, the work being entrusted to the Dutch Missionary Society (NZG). Karos appear to have accepted the broad exonym Batak in the nineteenth century, but the Dutch mission favoured a distinctive term, to reflect the very different language in which they preached, to cater to Karo sensitivity to Toba domination, and to emphasise that the German mission should keep out of its sphere (Kipp 1993 28-38 Steedly 1996). 

The coefficient A g of Equ. (34) has been replaced by —A/2V. According to this equation, the activity coefficient is composed of two contributions a solute independent positive contribution and a second (negative) term, nZg, which depends on the properties of the solute. The first term is a result of the heat of mixing, while the second contribution accounts for the entropy of mixing. Equ. (41) leads to the following general rules ... 

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