...The history of our English translations of “Don Quixote” is instructive... 
Miguel de Cervantes 「The History of Don Quixote, Vol. I, Complete」
...And were this a proper time, I could say a great dealin favour of such writings; and how, with some regulations, theymight be made both instructive and diverting...
Miguel de Cervantes Saavedra 「The History of Don Quixote de la Mancha」
...It's a curious and instructive reversal of the usual way of these things...
Rafael Sabatini 「Captain Blood」
...For the colored man no history can be more instructive and inspiring than this, of his own making, and written by one of his own race...
William Still 「The Underground Railroad」
...Many have requested that the difference in the various grades of skins be explained and for their benefit, as well as others of little experience, the following may prove instructive...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...I have just seen the January number of “Birds,” illustrated by colorphotography; and think it instructive, delightful and beautiful...
Various 「Birds Illustrated by Color Photograph [January, 1897]」
... is particularly instructive...
George Murray Levick 「Antarctic Penguins」
..."Families visiting the sea-side should provide themselves with this convenientand instructive work...
Henry J. Slack 「Marvels of Pond-life」
...No doubtthe former process is interesting and instructive, but it does not carryus very far...
Various 「Dog Stories from the "Spectator"」
...it may well stand on the same bookshelf with theentertaining and instructive writings of 'Eha...
Douglas Dewar 「A Bird Calendar for Northern India」
...This was instructive...
J. H. Fabre Bernard Miall 「Social Life in the Insect World」
...It contains something muchmore instructive than that...
Jean Henri Fabre Alexander Teixeira de Mattos 「The Glow-Worm and Other Beetles」
...This, it was alleged, would render our camp conversation instructive as well as entertaining...
Mayne Reid 「The Hunters' Feast」
...In thisrespect an instructive parallel might be drawn between the historyof Christianity and the history of Buddhism...
Sir James George Frazer 「The Golden Bough」
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