“filled nearly to the brim with sand”
Technique: Symbolism: a false front
“Nearly to the brim” is the language of plenty, and Orwell attaches it to sand: the bins look full and hold almost nothing to eat. They can be read as a picture of the whole regime, a thin layer of grain on top and sand underneath. Napoleon's answer to famine is not to feed the animals but to control what an outsider sees, so the lie is aimed at Whymper and, through him, the human world. The selected animals told to mention rising rations show hungry subjects enlisted to act out plenty.
“it was given out that they had died of coccidiosis”
Technique: Agentless passive and clinical jargon as a cover story
The passive “it was given out” names no speaker, so the lie seems to come from nowhere and from everyone. Coccidiosis is a real parasitic disease of the gut that can kill young animals, and its clinical sound turns a punishment into a misfortune. The reader has just been told that Napoleon stopped the hens' food and that nine died while it was stopped; the official record says illness. This is the chapter's pattern in miniature: an act of power, then an explanation that removes the person who did it.
“Curiously enough, they went on believing this even after the mislaid key was found”
Technique: Ironic narrative comment (understatement)
The narrator's mild “Curiously enough” pretends to be only a little surprised at something that should alarm the reader: a belief has survived the evidence that disproves it. Once Snowball is the explanation for everything, facts can no longer touch him. Orwell sets this comic detail beside others, such as the cows claiming Snowball milks them in their sleep, so that the scapegoating looks absurd. A few pages later the same absurdity turns deadly, when animals confess to Snowball's crimes and are killed.
“in his own writing, if you were able to read it”
Technique: Conditional clause and an appeal to evidence that cannot be checked
Squealer claims that proof exists and, in the same breath, tells the animals they could not check it. The conditional clause turns their illiteracy into a reason to trust him, so ignorance itself becomes evidence. The secret documents are never produced. Boxer, the animal Squealer is answering, never got beyond the letter D in the reading lessons of Chapter 3, and Orwell shows the cost here: whoever controls reading and writing controls the past, and the animals are defenceless against a rewritten history.
“Boxer looked at Napoleon to know whether he should crush the dog to death”
Technique: Symbolic gesture and dramatic irony
For one moment the balance of power is visible: the strongest animal on the farm has one of Napoleon's enforcers pinned under his hoof. Instead of using his strength, Boxer looks to Napoleon for permission, and lets the dog go when told. The reader sees what Boxer does not: at this moment he could resist, and his obedience is a choice. The narrator's note that Napoleon “appeared to change countenance” hints that the leader, briefly, is afraid, which makes Boxer's deference all the more costly.
“the dogs promptly tore their throats out”
Technique: Understatement: flat syntax and a brisk adverb
The first of the killings is told in seven plain words, set between a short clause about the finished confession and Napoleon's demand for more, as if it were the next item of business. The adverb “promptly” suggests efficiency, even routine: execution follows confession automatically. Orwell's calm fable voice refuses to dramatise, and the effect is colder than any description of pain would be. The reader, not the narrator, has to supply the horror.
“Such were her thoughts, though she lacked the words to express them.”
Technique: Free indirect discourse, then narratorial intrusion
For a long paragraph the narrator voices Clover's thoughts: the society she had hoped for, with “the strong protecting the weak”. This sentence then steps back to remind us that she could never have said any of it aloud, so the words we have just read were the narrator's, not hers. The irony is painful, because the clearest judgement on the regime comes from an animal who cannot deliver it. Her silence is also the regime's success: a judgement that cannot be put into words cannot be shared or organised.
“The execution of the traitors this afternoon was the final act.”
Technique: Loaded diction and a double meaning
The word “traitors” settles a verdict that no trial ever tested, and “execution” makes the killings sound like a lawful sentence. “Final act” means the last deed of the Rebellion, but it can also be heard as the last act of a play, and then it says more than Squealer intends: the confessions were staged in front of an audience. By declaring that “the Rebellion is now completed”, he makes hope itself unnecessary, because a song about a better future has no purpose once that future has officially arrived.