Experimental transition probabilities in NII lines

This work reports an extensive collection of 108 transition probabilities o f NII lines in the visible spectral region, all of them measured in an emis sion experiment. Relative intensity measurements have been made on a pulsed discharge lamp and the absolute A(ki) values have been obtained by using t he literature available data. Electron density and temperature range in thi s experiment from 0.2 to 1.1 10(23) m(-3) and from 17000 to 29000 K respect ively. The first one has been simultaneously determined from two-wavelength interferometry and from the Stark broadening of HeI 471.3 nm, the second f rom Boltemann-plot, of NII lines and from NII/NI intensities ratios. The re sults are compared with the recent available literature.