Exact information about the functional significance of the deep sections of the brain is only obtained by working through the brain histologically in serial section.

The goal of physiological research is functional nature.

In fact, quantitative findings of any material and energy changes preserve their full context only through their being seen and understood as parts of a natural order.

It must be born in mind that one does not see directly - as is the case in the exploration of the surface of the brain - where the electrodes are attacking.

The only positive finding which could be drawn from the first series, was the conclusion that the relationships obviously had a more complicated lay-out than had been thought, for the effects were so varied that no obedience to any law could be discovered.

We had to take the pictures in sections -- section by section and then they worked with that.