PALZONTOLOGICAL COLLECTIONS 255 
and the index, preface, and table of contents of the whole 
volume, bears date of December 27, 1901. 
This work has determined that there are in this department 
of the museum at least 6,166 type specimens, representing 2,222 
species and 71 varieties ; and 2,179 figured specimens, not types, 
representing 499 species and I1Ig varieties. Three-fourths of 
this material has come from the Paleozoic systems above the 
Cambrian. 
Epmunpb O. Hovey. 
