INDEX TO ILLUSTRATIONS. XI 



FACING PAGE 



OULLINS 304 



PACIFIC 306 



PEARL 310 



PETERS 312 



POND 314 



POTTAWATTAMIE 316 



PRUNUS AMERICANA, BLOSSOMS OF 56 



PRUNUS AMERICANA, BARK OF 6 



PR UN US CERASIFERA, BLOSSOMS OF 46 



PR UN US CERASIFERA, BARK OF 6 



PR UN US DOMESTICA, BLOSSOMS OF 12 



PR UN US DOMESTICA, BARK OF 6 



PRUNUS HORTULANA, BLOSSOMS OF 64 



PRUNUS HORTULANA, BARK OF 6 



PRUNUS HORTULANA MINERI, BLOSSOMS OF 68 



PRUNUS HORT ULA NA MINERI, BARK OF 6 



PR UN US INSITITIA, BLOSSOMS OF 34 



PR UN US INSITITIA, BARK OF 6 



PRUNUS MUNSONIANA, BLOSSOMS OF 88 



PR UN US M UNSONIANA, BARK OF 6 



PR UN us NIGRA, BLOSSOMS OF 70 



PRUNUS NIGRA, BARK OF 6 



PR UN US TRIFLORA, BLOSSOMS OF 5<> 



PR UN US TRIFLORA, BARK OF 6 



QUACKENBOSS 32O 



ROBINSON 330 



SATSUMA 338 



SHIPPER 342 



SHIRO 344 



SHROPSHIRE 344 



SMITH ORLEANS 348 



SPAULDING 350 



SUGAR 354 



