These 126 NGC and IC nebulae were discovered by eye, not by photography. Nebuale in the LMC and SMC are not included.
The list includes the discoverer's name and the year found as well as the size and type of telescope used.
It also includes the constellation and Messier number if any.
William and John Herschel found most of these followed by Espin and Barnard.
Reference: Wolfgang Steinicke
http://www.klima-luft.de/steinicke/ngcic/obs_e.htm