æt ðæt tˈaɪm, dˈʊɹɹɪŋ ðə næpˈoʊlɪˈɑːnɪk wˈɔːɹz, kˈɛlp fɹʌmðə skˈɑːɾɪʃ ˈaɪləndz wʌzɐ vˈæljuːəbəl kəmˈɑːdᵻɾi, bˌiːɪŋ jˈuːzd tə pɹədˈuːs sˈoʊdə ˈæʃ fɔːɹ jˈuːs ɪn ɛksplˈoʊsɪvz.
At that time, during the Napoleonic Wars, kelp from the Scottish islands was a valuable commodity, being used to produce soda ash for use in explosives.