A (probably very) rough translation:
“The English took possession of Chibouctou on the 19th of August 1749 and named it Halifax.
It is one of the most beautiful ports in all parts of Acadia and England. It should provide great income, by the different advantages that it contains. It is located at 44 degrees 3 minutes latitude.”
This map is an inset from a broader map of Nova Scotia (Acadia), interestingly it shows the picketed part of Dartmouth as being near the bottom of what would be Old Ferry Road today, what appears to be the Eastern battery is seen further down the harbor, closer to Eastern Passage.
“Carte réduite des costes de l’Acadie” 17?? (>1749) https://gallica.bnf.fr/ark:/12148/btv1b53089777g