The analyses of a text #3

The narrator recalls his adolescence.
He, his great aunt Miss Trotwood and his friends came to Ham's office to meet Mr. Micawber who is the clerk for local lawyer Uriah Hip.
Uriah Hip is the partner of Mr. Wickfield, who is very sick now, whose only daughter Agnes is narrator's old friend.
Now Mr. Micawber is about to disclose Uriah having done evil deeds.

Chapter 52 I ASSIST AT AN EXPLOSION

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'Something has been got from him by fraud, I know,' returned Traddles quietly; 'and so do you, Mr. Heep. We will refer that question, if you please, to Mr. Micawber.'
'Ury -!' Mrs. Heep began, with an anxious gesture.
'YOU hold your tongue, mother,' he returned; 'least said, soonest mended.'
'But, my Ury -'
'Will you hold your tongue, mother, and leave it to me?'
Though I had long known that his servility was false, and all his pretences knavish and hollow, I had had no adequate conception of the extent of his hypocrisy, until I now saw him with his mask off. The suddenness with which he dropped it, when he perceived that it was useless to him, the malice, insolence, and hatred, he revealed, the leer with which he exulted, even at this moment, in the evil he had done - all this time being desperate too, and at his wits' end for the means of getting the better of us - though perfectly consistent with the experience I had of him, at first took even me by surprise, who had known him so long, and disliked him so heartily.
[David Copperfield by Charles Dickens]
1. I'd like to know if "the suddenness, malice, insolence, and hatred" are the objects of "revealed."
2. I think "the leer" is the subject of "took."
So I was wondering why there isn't and before "the leer."
Thank you in advance for your help.