SHORT NOTES ON PROFESSIONAL SUBJECTS. 
29 
The rockets were carried as follows:— 
Rockets. 
No 1. (serjeant) and 5 n.c. officers and men carried each 3 rockets and 
sticks, viz. 2 rockets in holsters, and 1 fixed in bucket on oft' side... 18 
No. 2 (horse-holder) carried 2 rockets in holsters and 6 sticks in a bucket 
on off side ... 2 
No. 5 and 8 (horse-holders and rocket tubes) carried each 2 rockets in 
holsters, but no sticks .. 4 
Total with front detachment of 9 men. 24 
The 1st and 2nd reserves were precisely alike, the men leading the horses 
had neither rockets nor sticks. The two first led-horses of each reserve carried 
22 rockets in magazines, 2 in holsters, 3 in a valise. The third led-horse 
carried 60 rocket sticks, or 2 bundles and 6 rockets in a valise between them, 
but nothing in holsters or on the cantle.... . 120 
The led-horses were found capable of keeping pace with the detachment at the 
gallop, but the troop saddles proved ill-suited to the purpose they were applied 
to, and light pack saddles were substituted afterwards at St Sebastian, with 
advantage. 
28. Endless band saw for cutting wrought-iron. The endless band 
saw for cutting wood is the invention of M. Perin, who exhibited it in the Paris 
Exhibition of 1855, where it was purchased by Colonel Tulloh, then Superintendent 
of the Eoyal Carriage Department. 
For the purpose of cutting iron it is driven at a very slow speed, about 250 feet 
per minute being found the most suitable. The teeth of the saw are set straight 
and cut very fine, about ten to the inch, and it should be of the hardest kind of 
saw steel that can be obtained. Iron one inch thick can be cut in any curved form 
at the rate of H inches per minute.* 
This saw is extensively used for cutting the brackets, transoms, and all 
irregular forms required in the manufacture of wrought-iron carriages; the 
advantage of this process consists in the saving of time, as the work requires veiy 
little finishing after it comes from the saw, and there is less waste of material. 
29. The following Table contains a full description of the construction of 
the French Imperial vessels, of which models were exhibited in the Paris 
Exhibition. 
* Specimens of which may be seen in the Royal Carriage Department, Woolwich, 
