PLATE 1 
EXPLANATION OF FIGURES 
The figures on this plate are drawn from wax-plate reconstructions of a series 
of brains of Amblystoma. The original models were made at a magnification of 
100 diameters and the drawings are reproduced here at 66 2/3 diameters. 
13 
larva. 
14 
15 
16 
17 
18 
Lateral view of a model of the brain of a stage-30 (Harrison) Amblystoma 
Medial aspect of the same model. 
Lateral view of a model of a stage-35 (Harrison) Amblystoma larva. 
Medial aspect of same. 
Lateral view of a model of a stage-37 (Harrison) Amblystoma larva. 
Medial aspect of same. 
