1 , ▁March ▁ 1 9 7 0 , ▁pp .   3 – 1 9 . ▁ ▁" Cost ans ó ' s ▁ 1 7 9 4 ▁Report ▁on ▁Str ength ening ▁New ▁California ' s ▁Pres id ios ," ▁ ▁translated ▁by ▁Manuel ▁P . ▁Serv ín . ▁California ▁Historical ▁Society ▁Qu arter ly , ▁vol . ▁ 4 9 , ▁no . ▁ 3 , ▁Sept . ▁ 1 9 7 0 , ▁pp .   2 2 1 – 2 3 2 . ▁« Di ario ▁Hist órico » ▁( 1 7 7 0 ) ▁ ▁« Di ario ▁del ▁via je ▁de ▁tierra ▁hecho ▁al ▁norte ▁de ▁la ▁California » ▁( 1 7 7 0 ) ▁ ▁See ▁also ▁ ▁Company ia ▁Fran ca ▁de ▁Vol unt aris ▁de ▁Catalunya ▁ ▁Bad ia ▁de ▁San ▁Francisco ▁ ▁External ▁links ▁ ▁" P ed ro ▁F ages ▁and ▁Miguel ▁Cost ans ó : ▁Two ▁Early ▁Let ters ▁From ▁San ▁Diego ▁in ▁ 1 7 6 9 " ▁Journal ▁of ▁San ▁Diego ▁History , ▁vol . ▁▁ 2 1 , ▁no . ▁ 2 , ▁spring ▁ 1 9 7 5 . ▁Trans l ated ▁and ▁edited ▁by ▁I ris ▁Wilson ▁Eng str and . ▁ ▁Di ary ▁of ▁the ▁Port ol á ▁Ex ped ition , ▁ 1 7 6 9 - 7 0 , ▁by ▁Miguel ▁Cost ans ó . ▁▁▁▁ ▁Category : Span ish ▁engine ers ▁Category : Pe ople ▁from ▁Barcelona ▁Category : 1 7