LE POIDS DU CHAT FORESTIER D'EUROPE 313 



Gewicht als âusserst unzuverlâssiges Kriterium zur Abschâtzung deren Kôrper- 

 grôsse. 



SUMMARY 



A survey of the published weights of F. silvestris in the différent countries 

 of Europe has been made. In the European Wild Cat, the authors have observed 

 a daily fluctuation of the body weight consisting of between 100 and 400 grams. 

 There is a seasonal variation in the weight of the çjcS from 1.10 to 2.50 kg. (88 indi- 

 viduals trapped or shot in the wild). The highest weights are to be found from 

 september to end of february. The seasonal variation of the weight in the ?Ç is 

 more complex than in the <J<J; it consists of between 250 and 2,150 grams (68 cats 

 taken in the wild). The development and the seasonal fluctuation in the weight 

 i in free-raised animais of both sexes has been studied. The examination of 177 wild 

 ( cats of France (106 $3 and 71 $Ç) shows that the weights are generally much 

 inferior to the se indicated in the literature. The greatest frequency in $<S is around 

 5.00 kg. (maximum 7.70 kg.), and around 3.50 kg. in ÇÇ (maximum 4.950 kg.). 



In F. silvestris the weight constitutes but a highly unreliable élément for the 

 appréciation of the size of an individual. 



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