Please note that all relationships with this element, and all its children will be deleted as well.
What does this mean?
Parent, Children and Cascade deletions
"Children" elements are elements that directly depend on another object (the "parent").
They only have sense in a certain context, and if the context to which they belong is removed, to mantain data meaning and integrity the application provides also the removal of them (now become "orphans").
Example
Take the case of a Travel and of the Events occurred during it.
In this example, deleting a Travel will leave all of its Events meaningless since, taken alone, they would have no context in which to place themselves, nor a way to reach them.
Consequently, the removal of a Travel also causes the elimination - cascading - of all Events that occurred in that Trip.
Important
Note that this operation is not limited to one level of relationship, but proceeds with children of deleted children and so on, until the entire database is freed from unnecessary data.
This lets the user remove all data about a Travel by simply deleting that Travel.
Georg Forster describes some of the musical instruments brought on board the Resolution by the natives.
Text on source
They also brought some musical instruments, among which was a trumpet, or tube of wood, about four feet long, and pretty strait; its small mouth was not above two inches, and the other not above five in diameter; it made a very uncouth kind of braying, for they always sounded the same note, though a performer on the French horn might perhaps be able to bring some better music out of it. Another trumpet was made of a large whelk, (murex tritonis), mounted with wood, curiously carved, and pierced at the point where the mouth was applied; a hideous bellowing was all the sound that could be procured out of this instrument. The third went by the name of a flute among our people, and was a hollow tube, widest about the middle, where it had a large opening, as well as another at each end. This and the first trumpet were both made of two hollow semicylinders of wood, exactly fitted, and moulded together, so as to form a perfect tube.
English translation
Folios/Pages
pp. 227-228
Date
1773 06 04
Observations on the events description
The dots on the map indicate the places where sound and music events were described. They don't represent travel stages.