The Akitsushima in 1894

I have a real Brassey's for 1894. I bought it because I wanted good Sino-Japanese War ship data. One ship listed is the Japanese ship Akitsushima, launched in 1892. The Akitsushima was a protected cruiser of 3150 tons with dimensions of 302ft x 42ft-7in x 18ft-5in. The Akitsushima had a top speed of 19 knots with 8400 IHP and Brassey's says it was armed with 1-12.6in BLR, and 12-4.7in QF guns, but that has to be wrong. We think that the correct armament was 4-6in and 6-4.7in guns. The deck armour was 3in steel. There were four above water torpedo tubes.