The Tunnel Club recon (pp. 669–670)
Discarded fridgelettes, empty boxes, immovable and complexly-address-labelled trunks, used athletic tape and Ace bandages, the occasional empty Visine bottle (which Blott stashes in his sweatshirt-pouch, for Mike Pemulis’s next contest), Optics I & II lab reports, broken ball machines and stray tennis balls too dead even for the repressurization machine, broken or discarded TP cartridges of stroke-analysis filmings or worn-out entertainments
Context
The row's second phrase, inside the tunnel-litter inventory: "Optics I & II lab reports" as academy trash — the founder's optics curriculum reduced to dross the boys bag up, catalogued in one breath with dead tennis balls and "broken or discarded TP cartridges of stroke-analysis filmings or worn-out entertainments," so the whole E.T.A. film-optics complex (coursework, cartridge, camera) is present in a single junk-sentence. The later spilled box of "old TP-cartridges, old and mostly unlabelled" fanned on the tunnel floor (pp. 670-671) is flagged below rather than entried.