81 



FIGURE 16 

 Style 6 House ordered by Dr. Ida A. Kellar, High School for Girls, 

 Philadelphia. Erected on the grounds of Mrs. George Ziegler, 

 Aquetong, Bucks Co., Pa. 



Aouetong, Bucks Co., Pa., October 12, 1910. 

 My dear Mr. Jacobs: 



Replying to your communication: We are located about three miles from the 

 Delaware River west of New Hope. The Martin house purchased from you was erected 

 in March but the birds did not materialize until the latter part of May when some few 

 were seen but they did not locate. June 5th a number took possession of the house 

 and a short time later it was fully occupied (seventeen apartments) not, however, until 



easily explained. Martins sometimes remove their nesting material from one room 

 to another. Also, I might add that the birds sometimes steal nesting material from 

 one another. 



Some of the birds may have been discourged or interrupted by weather conditions, 

 and given up nest building duties, and allowed their nest material to be removed by 

 their neighbors. 



Mrs. Osborne's Martin house, of seventeen rooms, should furnish ample room, the 

 second year, for the increase of the colony, but to retain the overflow or surplus young, 

 which will with favorable conditions be raised in 1911, an additional house will be needed 

 in 1912. 



