This is the readme for a model that reproduces figures 5 - 8 from Rall, W. Theoretical significance of dendritic trees for neuronal input-output relations. In: Neural Theory and Modeling, ed. Reiss, R.F., Palo Alto: Stanford University Press (1964). For a more recent print of the same article, see pages 122-146 of The Theoretical Foundation of Dendritic Function, ed. Segev, I., Rinzel, J, and Shepherd, G.M., Cambridge, MA: MIT Press (1995). This implementation by Ted Carnevale, to whom questions should be addressed. Usage: 1. Unzip rall1964.zip into an empty directory. 2. Compile the mod file with (linux/unix) nrnivmodl or (mswin/mac) mknrndll. 3. (mswin) Double click on init.hoc, or (linux/unix) execute nrngui init.hoc from the command line or (mac) drag and drop init.hoc onto the nrngui icon. 4. A panel will appear with labeled buttons that offer a selection of figures, e.g. "Fig. 7--effect of activation sequence" Click on one of these to see NEURON reproduce the simulations shown in that figure of the original article. The Fig 7 button produces: