Original sentence: It was developed by Tony Brooker and Derrick Morris as an intended improvement on the ALGOL programming languages, removing some Algol features such as "passing parameters by name" (which in Algol 60 means passing the address of a short subroutine to recalculate the parameter each time it was mentioned)
Edited sentence: It was developed by Tony Brooker and Derrick Morris as an improvement on the ALGOL programming languages, removing some of Algol's poorer features such as "passing parameters by name" (which with Algol 60 meant not its usual meaning but passing the address of a short subroutine to recalculate the parameter each time it was mentioned)