Complex sentence: Like the 4th edition, it contained large blocks of text carried over from the 3rd edition, set in their same type, which means Encyclopedia Britannica's 5th edition was one of the last major publications to use the long s in print.
Split into simpler sentences: Like the 4th edition, it contained large blocks of text carried over from the 3rd edition, set in their same type. Because of this, Encyclopedia Britannica's 5th edition was one of the last major publications to use the long s in print.