Ralph calls several meetings or assemblies over the course of the novel, which meeting in particular are you refering too?
The boys Elected Ralph Chief after meeting at the platform at the begining of the book. This is when they realize it was Ralph who blew the shell and called them there.
Ralph and Piggy found each other and blew the conch shell first, so they called the first meeting of the boys
He suggest that ralph blows the conch.
He tells Ralph to blow the conch
Ralph unwisely calls a meeting at night.
enis
Jack called the meeting under the pretence of discussing the encounter with the beast on the mountain top but really with the intention of attempting to depose Ralph as leader and installing himself as the new leader of the boys.
Simon was not the only one who doubted the existence of the beast. At the meeting where the beastie was first raised Ralph insisted, "But there is no beast." Ralph also called another meeting to settle once and for all that there was no such thing as a beast. At that meeting Piggy also refuted the possibility of a beast by stating that "Things wouldn't work, radios and TV and things, they wouldn't make sense if there were beasts and ghosts and stuff, its not scientific." After Ralph called for a vote to decide if there might be such a thing as the beast Piggy stated, "And remember that I voted NO for the beast."
samneric and jack and ralph
by blowing on the conch to let everyone hear and come...most came out of curiosity of what was making the sound
Jack runs for leader against Ralph during the first meeting in "Lord of the Flies." Jack represents a more savage and authoritarian leadership style, while Ralph emphasizes order and civilization.
Ralph is elected chief during the very first meeting, which happens very early in the book.