æz ɐ mˈɛmbɚɹ ʌvðə wˈɑːʃɪŋtən skˈuːl hiː ɐdvˈænst ðə "ɡɹɐmˈæɾɪkəlɹɛtˈɔːɹɪkəl" pəzˈɪʃən ɪn ˈɪŋɡlɪʃ fɔːɹ sˈaɪəns ænd tɛknˈɑːlədʒi ɹᵻsˈɜːtʃ, wˌɪtʃ ˈɑːɹɡjuːd ðæt lɪŋɡwˈɪstɪk ɐnˈæləsˌɪs ʌv saɪəntˈɪfɪk dˈɪskoːɹs ʃˌʊd kənsˈɪdɚ hˌaʊ vˈɛɹiəs ɹɛtˈɔːɹɪkəl fˈʌŋkʃənz mˈænɪfˌɛstᵻd ɡɹæmˈæɾɪkli ɪn tˈɛksts æt ðə dˈɪskoːɹs lˈɛvəl.
As a member of the Washington School he advanced the "grammatical-rhetorical" position in English for Science and Technology research, which argued that linguistic analysis of scientific discourse should consider how various rhetorical functions manifested grammatically in texts at the discourse level.