Rollo's Tour in Europe- Mershon Company 1897-1904, 1906
Mershon published its Rollo's in several different series.
The Wideawake Series and the Rollo's Tour in Europe (10 titles in
five volumes) are the most well known. The ten Rollo books also
appeared in the post-1902 Regal Series, Standard Series and Standard
Sixteen Mos. Series. The names of the other series
are as of yet unknown.
Dating the Mershon books exactly can be difficult. These books can be
divided into 1897-Early 1902 and later 1902-1906. The 1897-early 1902
books' imprints only have New York. The later books also list the
Rahway, N.J. location.