ident　of　the　Royal　Institution；　Edinburgh。〃

Jack　Ryan；　stopping　before　one　of　these　advertisements；　read　it　twice　over；　with　extreme　surprise。

〃Mr。　Starr！〃　he　exclaimed。 〃Why；　on　the　4th　of　December　I　met　him　with　Harry　on　the　ladder　of　the　Dochart　pit！　That　was　ten　days　ago！ And　he　has　not　been　seen　from　that　time！　That　explains　why　my　chum　didn't　e　to　Irvine。〃

And　without　taking　time　to　inform　the　President　of　the　Royal　Institution　by　letter；　what　he　knew　relative　to　James　Starr；　Jack　jumped　into　the　train；　determining　to　go　first　of　all　to　the　Yarrow　shaft。　There　he　would　descend　to　the　depths　of　the　pit；　if　necessary；　to　find　Harry；　and　with　him　was　sure　to　be　the　engineer　James　Starr。

〃They　ha