dubdobdee

q15:
~~i: Of what does Fenton smell~~?
~~ii: In what odour did the thieving Jim Crow die~~?
~~iii: What inaccurate name is applied to the ursine foot~~?
~~iv: Who are compared to fish in beginning to smell after three days~~?
v: What are similar to chemicals, in that closer analysis results in a worsening odour?
~~vi: Whose recently discovered Sense of Smell, now just leaves Taste unaccounted for~~?
vii: What fragrance did the lovers inhale within Prince Eugen’s collection?
viii: What smell fills the air in the absence of the Electrician?
~~ix: What smells characterised Camberley at 9 o’clock~~?
x: What is ubiquitous, invisible and odourless?

COMPLETED:
i: Fenton is not the deer-chasing dog of internet fame but a fellow in The Merry Wives of Windsor who "smells April and May" (googled by

jeff_worrell)
ii: THE JACKDAW OF RHIEMS died in the "odour of sanctity": it stole a cardinal's ring and was made a saint in The Ingoldsby Legends (googled by

jeff_worrell)
iii: is possibly the STINKING HELLEBORE aka BEAR'S FOOT (tho there seems to be controversy over its stinking nature) (googled controversy via

jeff_worrell and

braisedbywolves)
iv: GUESTS, according to BENJAMIN FRANKLIN (googled by

belecrivain)
v:
vi: REMBRANDT's Sense of Smell was recently rediscovered and reunited with three of the five senses: only Taste is still missing (googled by

jeff_worrell)
vii:
viii:
ix: This refers to Betjeman's poem 'A Subaltern’s Love Song': "… nine-o’clock Camberley, heavy with bells/And mushroomy, pine-woody, evergreen smells" (googled by

jeff_worrell)
x: