At the general elections in Belgium, the voter has the possibility to bring out either a vote for a party or a vote for a candidate of the party (a preferential vote). At the general elections of December 17, 1978 for the House of Representatives the voters have voted for 51,86 % by preference, whereas for the Senate 41,82 % of them have done so. The use of preferential votes is varying from one electoral district toanother: from 68,30 % in the district of Oudenaarde to 35,74 % in Bergen. There is also a difference from one political party to another. The highest percentage is obtained by the CVP-PSC (catholic party): 61,12 %; the lowest by the KPB-PCB (communist party): 27,34 %. The preferential votes individual candidates obtain differ widely, pointing out not only their popularity but also to a certain extend their political power.