Full text: Japanese translation and original English
Watson follows the steps in Holmes's explanation one by one. Some information comes from the testimony, while other information comes from examining the ground itself. How do the two connect? Holmes now brings the conversation back to that day's visit to the scene and discusses with his friend the method by which he observes and interprets details.
"It is obvious.「分かりきったことさ。
And now, you see, I had narrowed the field down considerably.こうして、調べる範囲がかなり狭まったのが分かるね。
The possession of a grey garment was a third point which, granting the son's statement to be correct, was a certainty.息子の証言を正しいと認めるなら、灰色の衣服を持っていることが、第三の確かな点になる。
We have come now out of mere vagueness to the definite conception of an Australian from Ballarat with a grey cloak."単に漠然とした話から、灰色のマントを着た、バララット出身のオーストラリア人という、はっきりした人物像へたどり着いたのだ」
"And one who was at home in the district, for the pool can only be approached by the farm or by the estate, where strangers could hardly wander."「しかも、その土地に通じた人物だ。池へは農場か地所を通ってしか近づけず、よそ者がそう簡単に入り込めるところではないのだからね」
"Then comes our expedition of to-day.「そこへ、今日の現場行きが続く。
By an examination of the ground I gained the trifling details which I gave to that imbecile Lestrade, as to the personality of the criminal."地面を調べたことで、犯人の人物像に関する、あの取るに足らない細部が分かった。あのばかなレストレードに教えてやったものだよ」
"But how did you gain them?"「でも、どうやって分かったんだい」
"You know my method.「私のやり方は知っているね。
It is founded upon the observation of trifles."ささいなことを観察するのが土台なのだ」