| A fourth letter, concerning the sacred Trinity (1691) by John Wallis |
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| A second letter concerning the Holy Trinity (1691) by John Wallis |
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| A seventh letter, concerning the sacred Trinity (1691) by John Wallis |
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| A sixth letter, concerning the sacred Trinity (1691) by John Wallis |
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| An eighth letter concerning the sacred Trinity (1692) by John Wallis |
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| The doctrine of the Blessed Trinity briefly explained (1690) by John Wallis |
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