Does it say this?...I'm surprised that you don't know that it was the baptism of the Holy Spirit with the evidence of speaking in other tongues that they came to give them by the laying on of hands.
You probably also don't know that is separate from receiving the Holy Spirit at salvation.
16 (For as yet WATER BAPTISM was fallen upon none of them: only they were baptized BY THE HOLY GHOST in the name of the Lord Jesus.)
Or this...
16 (For as yet he(HOLY GHOST) was fallen upon none of them: only they were baptized(BY WATER) in the name of the Lord Jesus.)