| 1. | Influence mines were a new development but moored contact mines were the most numerous.
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| 2. | An outer line of contact mines was laid approximately outside the main line of defence.
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| 3. | Contact mines usually blew a hole in ships'hulls.
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| 4. | These torpedoes were improvised contact mines.
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| 5. | While returning to Shanghai on 9 October, " Waller " fouled a Japanese-moored " Shanghai "-type contact mine.
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| 6. | Displaying heroism, Spicer took part in the perilous work of sweeping for and disabling 27 contact mines during this period.
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| 7. | Displaying heroism, Morin took part in the perilous work of sweeping for and disabling 27 contact mines during this period.
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| 8. | Displaying heroism, Sundquist took part in the perilous work of sweeping for and disabling 27 contact mines during this period.
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| 9. | Destroyers in the assault force visually identified moored contact mines in the channel at low tide and destroyed them with gunfire.
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| 10. | Two Turkish contact mines exploded as our " first wave " approached the redoubt, blowing many of the men to pieces.
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