翻刻
リ三十六度上ニ北極ノ穴ヲアケ午ノ地平ヨリ
三十六度下ニ南極ノ穴ヲアケ是ニ地球ノ真
棒ヲ通シ雇ノ輪ト共ニ赤黄白ノ三道ヲ廻
スベシ
一内ヨリ第八ノ輪地平線也青黄色ニシテ十二
方位ヲ割付子ノ方ト午ノ方ニ子午規ヲ
取付ル
一地球ニハ五大洲ヲ記シ北ノ方ノ雇ノ輪ニ北極ヲ
記シ剋限ヲ計ルベシ
此略天儀ハ北水先生始テ被製処也有
来ル渾天儀ト違ヒ天球地球渾天儀ノ三
ツヲ兼タル器ニシテ日月ノ舎リ蝕等初心ニ甚
現代語訳
（前頁より続き）…子の地平より三十六度上に北極の穴を開け、午の地平より三十六度下に南極の穴を開け、ここに地球の真棒（じくぼう）を通し、雇の輪とともに赤道・黄道・白道の三道を回転させるべきである。
一、内側から第八の輪は地平線である。青黄色にして十二方位を割り付け、子の方角と午の方角に子午規を取り付ける。
一、地球儀には五大洲を記し、北の方の雇の輪に北極を記して、刻限（時刻）を計るべきである。
この略天儀は、北水先生が初めて製作されたものである。従来の渾天儀とは異なり、天球儀・地球儀・渾天儀の三つを兼ね備えた器具であって、日月の宿り（位置）・蝕（日食・月食）等を初心者に甚だ…
英語訳
(Continued from previous page) …a hole for the North Pole is opened thirty-six degrees above the north (*ne*) horizon, and a hole for the South Pole is opened thirty-six degrees below the south (*uma*) horizon. Through these holes, the central axis (*manbō*/真棒) of the terrestrial globe is inserted, and together with the supporting ring, the three paths — the Equator, the Ecliptic, and the White Road — are to be rotated.
One: The eighth ring from the inside is the Horizon Ring (*Chiheisen*/地平線). It is colored blue-yellow, and the twelve directional bearings are apportioned upon it. The Meridian Ring is attached at the north (*ne*) and south (*uma*) directions.
One: On the terrestrial globe, the Five Continents are to be marked, and the North Pole is to be marked on the northern supporting ring, so that the hours (*kokugen*/刻限) may be reckoned.
This *Ryaku-tengi* (Simplified Celestial Instrument) was first constructed by Master Hokusui. Unlike the conventional *Kontengi* (Armillary Sphere) that has been in use, it is an instrument that combines all three — the celestial globe (*tenkyūgi*/天球儀), the terrestrial globe (*chikyūgi*/地球儀), and the armillary sphere (*kontengi*/渾天儀) — into one, and for beginners it is exceedingly [well-suited for understanding] the positions of the Sun and Moon, eclipses, and so forth…