Launch records and booklet form
The National Diet Library catalogue dates the series from a March 1874 issue to number forty-three in November 1875. Comparing newspaper announcements and sales notices, Kageyama identifies April 2, 1874 as the first issue's actual release. Issue dating and sale date are distinct evidence.
The journal took the form of small Japanese-bound booklets, largely using literary prose mixing katakana and Chinese characters. Advertisements presented it as the printed outcome of members' discussions. Individual issues made those exchanges purchasable, preservable and attributable to particular authors.
Different positions in one journal
The first issue juxtaposed Nishi Amane on writing Japanese with Western letters and Nishimura Shigeki on writing reform and civilization. The second assembled responses by Katō Hiroyuki, Mori Arinori, Tsuda Mamichi and Nishi to the question of scholars' proper role.
Later issues addressed publication freedom, torture, trade, Western learning, marriage and concubinage, and equality between spouses. These juxtapositions connected law and economics with ethics and daily life. A shared interest in foreign knowledge did not produce a single agreed position on public service or family rights.
Lecture records, regulation and the end
Some texts identify a speech date, including Fukuzawa's November 1874 address on the Taiwan settlement and Mori's February 1875 anniversary address. Publication turned spoken exchanges into circulating texts while preserving chronological clues. Translations and original arguments appeared together.
New press rules required responsibility information, and later issues named editors and printers. Members voted to suspend publication in September, but final issues still appeared afterward. Number forty-three contained no explicit farewell announcement; the cessation became clear through the subsequent absence of further issues.