16 RECORDS VOLUME XI, JAN., 1 9] 9. 



The sterno-tracheals are very large; fig. 2, 

 E, s, side view; fig. 3, s, s, back view; fig. 4, 

 s, s, front view. 



The bronchials are represented by thin, 

 strap-like muscles marked e, or e, e, in the 

 figures mentioned above. These muscles ex- 

 tend from the base of the sterno-tracheals to 

 the first bronchial semiring, and their func- 

 tion is to render tense the syringeal vibra- 

 ting membrane; fig. 2, F, u. This is proba- 

 ably functional in this species. 



(CONTINUKD.) 



Saturday, Jan. 18. Weston. 



Overcast with showers about noon; mild. 40°, with a 

 "very light northeast wing. Walk from Weston to Kendal 

 Green, thence to Waltham, via the Cambridge Reservoir. 

 Birds seen :- 



1. White-breasted Nuthatch, 1. 



2. Crow, 25. 



3. Starling, 7. 



4. Black-capped Chickadee, 4. 



5. Pheasant, 1 9 • 



6. Blue Jay, 1. 



7. Pine Grosbeak, 5, 2 of them young (j^s and 3 9 s. All 

 were feeding upon ash seeds that were on the ground. 



8. Song Sparrow, 1. 



