1 5 ▁May ▁ 1 8 6 1 , ▁he ▁was ▁promoted ▁to ▁captain . ▁In ▁ 1 8 6 2 , ▁he ▁served ▁on ▁the ▁Commission ▁to ▁examine ▁Canadian ▁def ences . ▁ ▁On ▁ 3 0 ▁March ▁ 1 8 6 3 ▁he ▁commission ed ▁the ▁ 1 2 - gun ▁sc rew - cor v ette ▁ ▁at ▁W ool wich . ▁Arch er ▁served ▁on ▁the ▁West ▁Africa ▁Station . ▁B yth ese a ▁was ▁in val ided ▁out , ▁and ▁replaced ▁by ▁Captain ▁Francis ▁Mart en ▁on ▁ 1 2 ▁April ▁ 1 8 6 4 . ▁ ▁From ▁ 1 ▁April ▁ 1 8 6 6 ▁until ▁ 1 8 6 7 , ▁he ▁was ▁carried ▁on ▁the ▁books ▁of ▁the ▁flags hip ▁of ▁the ▁North ▁American ▁Squadron , ▁HMS ▁Dun can , ▁for ▁special ▁service ▁as ▁Naval ▁Att ache ▁in ▁Washington , ▁D . C . ▁ ▁From ▁ 6 ▁May ▁ 1 8 6 7 ▁until ▁ 2 9 ▁November ▁ 1 8 7 0 ▁he ▁was ▁captain ▁of ▁the ▁sc rew - fr ig ate ▁. ▁B yth ese a ▁commanded ▁her ▁for ▁the ▁entire ▁commission . ▁She ▁served ▁first ▁in ▁the ▁Channel ▁squad ron , ▁then ▁the ▁West ▁Ind ies , ▁then ▁joining ▁the ▁flying ▁squad ron ▁at ▁Bah ia ▁on ▁ 4 ▁August ▁ 1 8 6 9 . ▁ ▁L oss ▁of ▁HMS ▁Lord ▁C ly de ▁On ▁ 1 4 ▁September ▁ 1 8 7 1 ▁he ▁commission ed ▁the