BIED SOCIOLOGY 131 



always assumed to run counter to the social instinct pre- 

 vailing at other times of the year. I have never seen 

 double or treble nests, but I once saw a cottage whose 

 eaves were covered by martins' nests from one end to the 

 other, a continuous row of nests all touching or within 

 less than an inch of one another. 



