112 APPENDIX F 



bird on the moor. (C), having been kept on fouled ground all the 

 winter, was as likely as any wild bird to pick up an excessive number 

 of larval Trichostrongylus, as spring temperatures roused the worms 

 to activity. 



In the case of (//), (/), and (./), three birds purposely infected 

 at various times during August, September, and October in 1909, 

 and kept on fouled ground, all three remained healthy until the 

 spring, though gradually losing weight. One of them succumbed 

 on April 12th, 1910, and was examined by Dr Hammond Smith, 

 who found "plenty of Trichostrongylus" and the "liver studded all 

 over with white spots, which were hard and gritty." This bird 

 was probably (-/), but. unfortunately, the identification was lost. 

 [H) and (/) were alive and well on May 17th, 1910, and weighed 

 respectively 22 ounces and 21 ounces, the latter having quite a 

 heavy infection of Trichostrongylus, to judge by the number of 

 ova in the csecal excreta. The former very few. 



