The entrance of this little ship into the British service was hailed in Germany with something approaching derision, and in the technical papers the futility of the submarine was urged with a wealth of argument. The little Holland boat, however, was merely the foundation from which the British authorities proceeded to develop a type of craft in keeping with the offensive rôle of the British Navy, and in 1906 submarines were being built for the British Fleet mounting two torpedo tubes on a displacement of about 300 tons, and possessing a surface speed of fourteen knots in combination with a submerged speed of ten knots. When it is added that these craft possessed a full speed radius of about 3,000 miles on the surface and were estimated to be able to travel 150 miles under water, it is not surprising that German naval opinion as to the advantages of the submarine underwent a sudden and dramatic change. Henceforth the submarine was to be treated by German naval officers with respect. Without the formality of any public announcement, either in the Reichstag or in the Press, an under-water boat was laid down at the Germania Yard at Kiel in 1906, and thenceforward an energetic policy of construction was pursued, although it was not until two years later that legislative provision was made for the building of this type of warship. A very remarkable feature of German policy has been the persistency with which cruisers have been built even at a time when other naval Powers, including Great Britain, were inactive. As a matter of course, during the period when the German Government was content to provide a fleet mainly for the purposes of coast defence, great importance was attached to the efficiency and adequacy of the cruiser squadrons. At the time of the passage of the Navy Act of 1900, for instance, there were eighteen cruisers completed and nearly a dozen others in hand. Under the Act of that year provision was made to continue this policy while attaining a higher standard of battle strength.[11] Even when, in 1908, legislative effect was given to the ambition of the Marine Office further to expedite battleship construction, in spite of the heavy cost involved by the transition from mixed armament ships to the all-big-gun ships of the Dreadnought era, the Reichstag was asked to stereotype the cruiser programme. The Act made provision for two light cruisers to be laid down annually, and in the measure passed in 1912 an addition of two "small cruisers" was made for the period 1912-1917. A notable contrast is provided by a study of Germany's action and the policy of the British Admiralty charged with the protection of a vast oversea trade and half the shipping of the world. During the later years of the last century and the first four years of the present century a persistent policy of construction was pursued both in armoured and protected cruisers, and then for several years there was a complete cessation of this form of shipbuilding activity.