What miscellaneous effects of female personal wearing apparel were perceived by him?

A pair of new inodorous halfsilk black ladies’ hose, a pair of new violet garters, a pair of outsize ladies’ drawers of India mull, cut on generous lines, redolent of opoponax, jessamine and Muratti’s Turkish cigarettes and containing a long bright steel safety pin, folded curvilinear, a camisole of batiste with thin lace border, an accordion underskirt of blue silk moirette, all these objects being disposed irregularly on the top of a rectangular trunk, quadruple battened, having capped corners, with multicoloured labels, initialled on its fore side in white lettering B. C. T. (Brian Cooper Tweedy).

What impersonal objects were perceived?

A commode, one leg fractured, totally covered by square cretonne cutting, apple design, on which rested a lady’s black straw hat.  Orangekeyed ware, bought of Henry Price, basket, fancy goods, chinaware and ironmongery manufacturer, 21, 22, 23 Moore street, disposed irregularly on the washstand and floor and consisting of basin, soapdish and brushtray (on the washstand, together), pitcher and night article (on the floor, separate).

Bloom’s acts?

He deposited the articles of clothing on a chair, removed his remaining articles of clothing, took from beneath the bolster at the head of the bed a folded long white nightshirt, inserted his head and arms into the proper apertures of the nightshirt, removed a pillow from the head to the foot of the bed, prepared the bedlinen accordingly and entered the bed.

How?

With circumspection, as invariably when entering an abode (his own or not his own):  with solicitude, the snakespiral springs of the mattress being old, the brass quoits and pendent viper radii loose and tremulous under stress and strain:  prudently, as entering a lair or ambush of lust or adders:  lightly, the less to disturb:  reverently, the bed of conception and of birth, of consummation of marriage and of breach of marriage, of sleep and of death.

What did his limbs, when gradually extended, encounter?

New clean bedlinen, additional odours, the presence of a human form, female, hers, the imprint of a human form, male, not his, some crumbs, some flakes of potted meat, recooked, which he removed.

If he had smiled why would he have smiled?

To reflect that each one who enters imagines himself to be the first to enter whereas he is always the last term of a preceding series even if the first term of a succeeding one, each imagining himself to be first, last, only and alone whereas he is neither first nor last nor only nor alone in a series originating in and repeated to infinity.

What preceding series?