"On the Magnetic properties of Hot-Rolled and
Cold-Rolled Malleable Iron," the other "On the Strains in the Interior
of Beams." He gave evidence before the Select Committee on Weights and
Measures, and also before the Public Schools Commission.

In the latter part of 1862 a difference arose between Airy and
Major-General Sabine, in consequence of remarks made by the latter at
a meeting of the Committee of Recommendations of the British
Association. These remarks were to the effect "That it is necessary to
maintain the complete system of self-registration of magnetic
phenomena at the Kew Observatory, because no sufficient system of
magnetic record is maintained elsewhere in England"; implying
pointedly that the system at the Royal Observatory of Greenwich was
insufficient. This matter was taken up very warmly by Airy, and after
a short and acrimonious correspondence with Sabine, he issued a
private Address to the Visitors, enclosing copies of the
correspondence with his remarks, and requesting the Board to take the
matter of this attack into their careful consideration. This Address
is dated November 1862, and it was followed by another dated January
1863, which contains a careful reply to the various points of General
Sabine's attack, and concludes with a distinct statement that he (the
Astronomer Royal) can no longer act in confidence with Sabine as a
Member of the Board of Visitors.

Of private history: There were the usual short visits to Playford at
the beginning and end of the year.--From June 28th to Aug. 5th he was
in Scotland (chiefly in the Western Highlands) with his wife and his
sons Hubert and Osmund. In the course of this journey he visited the
Corryvreckan whirlpool near the island of Scarba, and the following
paragraph relating to this expedition is extracted from his journal:
"Landed in Black Mile Bay, island of Luing, at 10.30. Here by previous
arrangement with Mr A. Brown, agent of the steam-boat company, a
4-oared boat was waiting to take us to Scarba and the Corryvreckan. We
were pulled across to the island of Lunga, and rowed along its length,
till we came to the first channel opening from the main sea, which the
sailors called the Little Gulf. Here the sea was rushing inwards in a
manner of which I had no conception. Streams were running with raving
speed, sometimes in opposite directions side by side, with high
broken-headed billows. Where the streams touched were sometimes great
whirls (one not