Table I.

Numbers of nerve fibers measured for A) Figure 4 and B) Figure 5. F1 – longer fiber of a bipolar neuron; F2-shorter fiber of a bipolar neuron; Fm-fiber from a monopolar neuron.

A.	F1	F2	Fm
Control	70	70	312
LIF	89	89	193
BMP4	35	35	216
Total, 4 experiments; 1109 nerve fibers counted
B.	F1	F2	Fm
LIF	68	68	98
BMP4	41	41	282
LIF+BMP4	54	54	153
Total, 3 experiments; 859 nerve fibers counted.