totally baffled by left side! - 19a & d, 20, 23 & 33. - I've ----dns for 19d - where am I wrong? As for the four works representations - two are obvious, one subtle, but totaled with the fourth (as 2 separate occurrences) - gives only 24 letters???
19dn is ----ans, so you have 35ac wrong. I've now identified 3 of the works but the fourth, which is presumably in the top right-hand quadrant, eludes me.