PHOTOGRAPHIC RESEARCHES ON NOVAE AND DWARF VARIABLES 
           MADE AT THE OBSERVATORIES OF LOJANO AND ASIAGO
                      by L. ROSINO, Asiago 
                          (Abstract)


    Several old-novae and U Gem variables have been the object of photographic 
survey with the 24-inch Zeiss Reflector of Lojano, since 1937. The 
results obtained are shortly exposed and some suggestions for further work 
are given. Nova DQ Herculis was observed with the 48-inch telescope of the 
Asiago Astrophysical Observatory after the discovery of Walker; improved 
elements were derived and the effect of the nebular envelope, which surrounds 
the star, on the amplitude of the eclipses was studied. Finally some results 
are given of the systematic survey of rapid variables (flare stars) in Orion 
Nebula and NGC 2264.