xiv TEACHERS' PORTFOLIOS OF PLATES. 



The one hundred plates are placed in three portfolios, as follows : 



Portfolio Xo. 1 ; thirty-two plates. 



Permanent Residents and Winter Visitants. (See Appendix, pages 



6, 7.) 



Portfolio No. 2; thirty-four plates. 



March and April migrants. (See Appendix, pages 16, 17.) 



Portfolio No. 3; thirty-four plates. 

 May migrants, types of birds' eggs, and nests of birds photographed 

 in nature. (See Appendix, pages 20, 21.) 



