What reason did Stephen give for declining Bloom's offer?

That he was hydrophobe, hating partial contact by immersion or total by submersion in cold water (his last bath having taken place in the month of October of the preceding year), disliking the aqueous substances of glass and crystal, distrusting aquacities of thought and language.

What impeded Bloom from giving Stephen counsels of hygiene and prophylactic to which should be added suggestions concerning a preliminary wetting of the head and contraction of the muscles with rapid splashing of the face and neck and thoracic and epigastric region in case of sea or river bathing, the parts of the human anatomy most sensitive to cold being the nape, stomach, and thenar or sole of foot?

The incompatibility of aquacity with the erratic originality of genius.

What additional didactic counsels did he similarly repress?

Dietary: concerning the respective percentage of protein and caloric energy in bacon, salt ling and butter, the absence of the former in the lastnamed and the abundance of the latter in the firstnamed.

Which seemed to the host to be the predominant qualities of his guest?

Confidence in himself, an equal and opposite power of abandonment and recuperation.

What concomitant phenomenon took place in the vessel of liquid by the agency of fire?

The phenomenon of ebullition. Fanned by a constant updraught of ventilation between the kitchen and the chimneyflue, ignition was communicated from the faggots of precombustible fuel to polyhedral masses of bituminous coal, containing in compressed mineral form the foliated fossilised decidua of primeval forests which had in turn derived their vegetative existence from the sun, primal source of heat (radiant), transmitted through omnipresent luminiferous diathermanous ether. Heat (convected), a mode of motion developed by such combustion, was constantly and increasingly conveyed from the source of calorification to the liquid contained in the vessel, being radiated through the uneven unpolished dark surface of the metal iron, in part reflected, in part absorbed, in part transmitted, gradually raising the temperature of the water from normal to boiling point, a rise in temperature expressible as the result of an expenditure of 72 thermal units needed to raise I pound of water from 50 to 212 Fahrenheit.

What announced the accomplishment of this rise in temperature?

A double falciform ejection of water vapour from under the kettlelid at both sides simultaneously.

For what personal purpose could Bloom have applied the water so boiled?

To shave himself.

What advantages attended shaving by night?

A softer beard: a softer brush if intentionally allowed to remain from shave to shave in its agglutinated lather: a softer skin if unexpectedly encountering female acquaintances in remote places at incustomary hours: quiet reflections upon the course of the day: a cleaner sensation when awaking after a fresher sleep since matutinal noises, premonitions and perturbations, a clattered milkcan, a postman's double knock, a paper read, reread while lathering, relathering the same spot, a shock, a shoot, with thought of aught he sought though fraught with nought might cause a faster rate of shaving and a nick on which incision plaster with precision cut and humected and applied adhered which was to be done.

Why did absence of light disturb him less than presence of noises