"With the result of driving it through the ventilator."
"And also with the result of causing it to turn upon its master at the other side (и
также заставив змею обратиться против = напасть на своего хозяина). Some of the blows of my cane came home and roused its snakish temper (некоторые из ударов моей трости попали в цель и разбудили ее змеиную злобу; temper — нрав, характер; злоба, гнев), so that it flew upon the first person it saw (и потому она напала на первого человека, которого увидела). In this way I am no doubt indirectly responsible for Dr. Grimesby Roylott's death (таким образом, я косвенно ответственен
за смерть доктора Гримсби Ройлотта), and I cannot say that it is likely to weigh very heavily upon my conscience (и не могу сказать, что эта /вина/ тяготеет над моей совестью; to weigh — весить; heavily — тяжело)."
"And also with the result of causing it to turn upon its master at the other side. Some of the blows of my cane came home and roused its snakish temper, so that it flew upon the first person it saw. In this way I am no doubt indirectly responsible for Dr. Grimesby Roylott's death, and I cannot say that it is likely to weigh very heavily upon my conscience."