To my mind this repetition adds emphasis, although it is a formal blur.
He adds that the humility and patience of the disciple was a lesson for the master.
When patiently entreated, the least of creatures adds its note to the harmonies of life.
This child sleeps in the same apartment with its master and mistress, which adds to the difficulty of removal.
"Believe me, my dear Miss Elizabeth, that your modesty, so far from doing you any disservice, rather adds to your other perfections.
But the owner of the heap coolly separates the animal from the vegetable, adds a little water, and drinks his chicha without ceremony.
Does he wish to express still more forcibly this sentiment, he doubles the word, or prefixes an adjective, or adds an affix, as the genius of his language may dictate.
What adds to the difficulty to my mind is that the metamorphosis occurred when Mrs. Tebrick was a full-grown woman, and that it happened suddenly in so short a space of time.
At the end of his report on the kennel the writer adds these words: "It was certainly one of the happiest days of my life to have the pleasure of looking over so many grand little dogs, but to find them in England quite staggered me.