To all those who have paid any attention to the subject of quarantine, it is well known that certain articles are held to be susceptible of conveying the contagion of plague; that certain others, in regard to this property, are considered doubtful; and that others are held to be unsusceptible of retaining and communicating it.

Are these distinctions accurate? Are they founded on well-established facts? On these questions I shall have the honour of submitting some remarks to the Society, with the hope of drawing attention to a subject of much importance, and hitherto, in a scientific point of view, strangely neglected.