I need help with my conclusion.

The conventions of a number of the states, having at the time of their adopting the constitution, expressed a desire, in order to prevent misconstruction or abuse of its powers, that further declaratory and restrictive clauses should be added: and as extending the ground of public confidence in the government, will best ensure the beneficent ends of its institution. what is meant by the phrase "further declaratory and restrictive clauses"?

What is one way that the author makes a distinction between the first transcontinental railroad and the first transcontinental passenger flights in 1936

"ten from the sea to the sand he walks, to look in the soil, but not in the box''!