"147 



has shown that only the utmost carelessness on the part of a 

 visiting student will result in the displacing of one of these boards 

 from its proper location at the beginning of a family. 



Fig. 2. Uniform Order and Family Boards. 

 Courtesy of Central Museum of the Brooklyn Institute of Arts and Sciences. 



Under the old system of large hanging signs, if several families 

 consisting of only a few species, appear in the same pigeon hole 

 their names must be presented in series on one end board, or 



