Annotations by Alexey Sklyarenko

According to Van Veen (the narrator and main character in VN's novel Ada, 1969), Baron d'Onsky (nicknamed Skonky, Demon's adversary in a sword duel) died not ‘of his wounds’ (as it was viciously rumored) but of a gangrenous afterthought on the part of the least of them, possibly self-inflicted: 

At the end of his farewell letter to Marina (in VN's novel Ada, 1969, Van's, Ada's and Lucette's mother) Demon Veen (Van's and Ada's father) says that Marina's runaway maid has been found by the police in a brothel here and will be shipped to Marina as soon as she is sufficiently stuffed with mercury:

According to Van Veen (the narrator and main character in VN's novel Ada, 1969), one of the two seconds in Demon's sword duel with Baron d'Onsky (Skonky) was Colonel St Alin, a scoundrel:

Describing his second road trip with Lolita across the USA, Humbert Humbert (the narrator and main character in VN’s novel Lolita, 1955) mentions Felis tigris goldsmithi:

In his poem "Wanted" composed in a madhouse after Lolita was abducted from him Humbert Humbert (the narrator and main character in VN’s novel Lolita, 1955) mentions the balmy days and the palmy bays:

Who is your hero, Dolores Haze?

Still one of those blue-caped star-men?

Oh the balmy days and the palmy bays,

And the cars, and the bars, my Carmen! (2.25)

The balmy days and the palmy bays make one think of Balmont's poem Pal'ma ("The Palm," 1914):

According to Van Veen (the narrator and main character in VN’s novel Ada, 1969), the details of the L disaster in the beau milieu of the 19th century, which had the singular effect of both causing and cursing the notion of ‘Terra,’ are too well-known historically, and too obscene spiritually, to be treated at length in a book addressed to young laymen and lemans — and not to grave men or gravemen: 

In VN’s novel Lolita (1955) the number 342 reappears three times. 342 Lawn Street is the address of the Haze house in Ramsdale. 342 is Humbert's and Lolita's room in The Enchanted Hunters (a hotel in Briceland where they spend their first night together). Between July 5 and November 18, 1949, Humbert registers (if not actually stays) at 342 hotels, motels and tourist homes. The number 342 seems to hint at Earth, Mars and Venus (the third, the fourth, and the second planets of the Solar System).

When Humbert Humbert (the narrator and main character in VN’s novel Lolita, 1955) finally tracks down Clare Quilty (the playwright and pornographer who abducted Lolita from the Elphinstone hospital), Quilty offers Humbert an old-fashioned rencontre, sword or pistol, in Rio or elsewhere:

In a little poem that he composed for Rita Humbert Humbert (the narrator and main character in VN’s novel Lolita, 1955) calls The Enchanted Hunters (a hotel in Briceland where Humbert and Lolita spend their first night together) "the blue hotel:"

Describing his childhood romance with Annabel Leigh, Humbert Humbert (the narrator and main character in VN’s novel Lolita, 1955) says that the same June of the same year (1919) a stray canary had fluttered into Annabel's house and his, in two widely separated countries: