These 6 different cover types, have essentially, or identically the same contents/text. (I think the contents are the same!)
We can maybe call these "Cheap editions". They only contain around 7 images, including Frontispiece.
The light blue One Shilling Jules Verne's Works came first and then the Pears volumes came next, and the Non-Pears at the end of the Pears run!
The below chart show what volumes are available in each of the Series.
The most complete series, is the "Pears Plain", the 2nd column below.
Title
Jules Verne
Works
Pears Plain
Pears Banner
Gilt Banner
Grey Banner
Gilt Title
The Adventures of Three
Englishmen and Three
Russians in South Africa
1892
1892
1886
The Archilpelago on Fire
1888
1888/1894
1888
Around the Moon
?
1893
1876
nd
Around the World in
Eighty Days
1880
nd
1889
nd ?1880
The Begums Fortune
nd
1890
1890
1890
The Blockade Runners
1876
1881 - Alternate
1894
1887
1876
The Child of the Cavern
?
1888/1891
1888
1882
The Clipper of the Clouds
1891
1891
1891
1891
Dick Sands
or The Boy Captain - Complete -
1882
?
1882
Dick Sands
or The Boy Captain
- Part 1 -
1882
Dick Sands
or The Boy Captain
- Part 2 -
1882
Dr Ox's Experiment,
Master Zacharius
1884
?
1888
?1888
Five Weeks in a Balloon
?
?
nd ? 1880
1884
The Flight to France
1893
1891
The Floating City
1876
?
?
1876/1882/1886
From the Earth
to the Moon
1876
?
1889
1876/1892
Fur Country
1907
1886
Fur Country - Part 1 -
1886
Fur Country - Part 2 -
1877
The Giant Raft - Part 1 -
Eight Hundred Leagues
on the Amazon
1885
1893
?
?
The Giant Raft - Part 2 -
The Cryptogram
1885
1894
?
Godfrey Morgan
1892
?
nd - Bookplate 1893
The Green Ray
A Romance of the
Scottish Highlands
1884
nd
nd
1885
Hector Servadac
1882
1882
Hector Servadac - Part 1 -
?
Hector Servadac - Part 2 -
1882 - 3rd Ed
mispelled Servadoc
Keraban the Inflexible
- Part 1 -
The Captain of the
Guidara
1887
1887
1887
?
Keraban the inflexible - Part 2 -
Scarpante the Spy
1887
1887
1887
NOT Found Yet!
The Lottery Ticket
A Tale of Tellemarken
1890
1890
1890
Martin Paz
1886
1891
1876/1891
Mathias Sandorf, - Complete -
1889
Mathias Sandorf - Part 1 -
1889
1889
1889
Mathias Sandorf - Part 2 -
Captives of Antekritta
1889
1889
1889
Michael Strogoff - Complete -
1888
1888
nd
Michael Strogoff - Part 1 -
1885
Michael Strogoff - Part 2 -
1885
Mysterious Island - Part 1 -
Dropped from the Clouds
1889
?
1889
1889
Mysterious Island - Part 2 -
Abandoned
NOT Found Yet!
1892
1889
1886
Mysterious Island - Part 3 -
The Secret of the Island
NOT Found Yet!
1894?
1888
?
North Against South - Part 1 - Burbank the Northerner
A Tale of the American
Civil War
1891
1891
North Against South - Part 2 -
Texar the Southerner
A Tale of the American
Civil War
1891
1891
The Steam House - Part 1 -
The Demon of Cawnpore
nd
nd
The Steam House - Part 2 -
Tigers and Traitors
1893
1890
1890
The Survivors of the
Chancellor - Complete -
1894
Pt1&2-1887&83
1878
Tribulations of a
Chinaman
?
?
?
Twenty Thousand
Leagues Under the Sea - Complete -