by the U. R. S. I. and forwarded to the International Bureau of the Telegraph Union at Berne, which after arranging with the administrations would, in agreement with the U. R. S. I., draw up the final programs and arrange for the transmission provided therein.

SECOND PROPOSAL

Information from Normal Commercial Traffic

All commercial receiving stations would be asked to fill up regularly the table in Model 1, attached, on which will appear figures summing up the daily general aspect of commercial traffic on the various frequencies employed.

The table itself shows the nature of the information to be supplied. The following method would be adopted in collecting and publishing results:

The tables filled up by receiving stations would be forwarded each month to the telegraph administration of the country concerned, which would draw up or cause to be drawn up by the National Committee of the U. R. S. I. of the same country, after examination and criticism, résumés in accordance with Model 2 attached.

These résumés would be sent by each administration concerned to the International Bureau of the Telegraph Union at Berne, which would forward them to the International Bureau of the U. R. S. I. The latter would again sum them up in a single document which for the moment might be composed of several tables divided as follows:

Table 1.-Eastern Europe.
Table 2.-Western Europe.
Table 3.-North America.
Table 4.-Asia, etc.1

The general tables will thus enable an examination to be made of variations over very long periods and comparisons with meteorological phenomena of wide extent.

THIRD PROPOSAL

Possible Participation of Commercial Receiving-stations in Certain Observations in regard to Propagation.

Commercial receiving stations and especially ships would be recommended, as far as their normal service allowed, to listen for

This program is identical with that drawn up by the Astronomical Union for the study of solar activity. The table in Model 2 is directly comparable to that drawn up by the latter Union and with those drawn up by geophysicists for the study of certain phenomena (earth's magnetism, frequency of aurora borealis, etc.).

transmissions selected by the U. R. S. I. for the regular study of various phenomena of propagation. This study would mainly relate to certain powerful stations which daily transmit meteorological information at fixed times.

For instance, transmission from Arlington, 4,015 kc/s (74.6 m) at 4 o'clock G. M. T. and 16,060 kc/s (18.8 m) at 16 o'clock G. M. T., has been of irreproachable quality for many years.

The results of this listening-in by commercial stations and ships would be entered on forms of Model 3, attached, and sent to the telegraph administrations of the country concerned which would use them in the same manner as those referred to in the second proposal. The list of transmissions selected (not to exceed ten) would be drawn up by the International Bureau at Berne, in agreement with the U. R. S. I., and forwarded to the parties concerned, in the publications of the International Bureau at Berne and in those of the U. R. S. I.

FOURTH PROPOSAL

Information as to Atmospherics Supplied by Normal Commercial Traffic

The principal commercial receiving-stations would be asked to fill out forms of Model 4, attached. These forms would be collected by the telegraph administrations and used in a similar manner to that indicated in the Second Proposal; the U. R. S. I. would be specially instructed to draw any conclusions arising out of the whole of these documents.

FIFTH PROPOSAL

Registration and Special Measurements

If regular measurement or registration of atmospheric parasites is undertaken in certain commercial stations, it would be well as far as possible to adopt the hours and frequencies already appointed by the U. R. S. I. as hours and frequencies to be observed in the measurements and registration undertaken by its members.

Administrations would be asked to assist the U. R. S. I. in collecting the list of measurements and registrations carried out in different countries, and the U. R. S. I. would publish a list of existing documents, stating if they have been published and, if so, where.

SIXTH PROPOSAL

Special Experiments

Should certain experiments concerning parasites involving exten sive international collaboration be organized, the procedure laid down in the First Proposal would be followed.

In principle give two figures each day corresponding to hours at which traffic is normally possible. Employ scale 6 to 5 of the Washington Regulations. One of the figures will correspond to the day period and the other to the night period. For short-wave stations in which different waves are employed by day and night, give the figures corresponding to the wave normally used.

Day Night Day Night Day Night Day Night Day Night

1I. e., involving in practice a reduction of effective speed by less than one half (taking account of repetitions), other conditions remaining the same.

'I. e., involving in practice a reduction of speed by one half or more than one half, other conditions remaining the same.

118275-30--11

27

FRENCH PROPOSAL CONCERNING TOPIC 11 OF THE PROGRAM

TECHNICAL CONDITIONS TO BE IMPOSED ON AMATEURS

The French Administration, after noting the technical provisions of the proposed license submitted by The Netherlands at the Prague Conference, agrees with the proposal of the Netherland office and considers that unification of technical conditions as regards licenses for amateurs might be obtained by applying the following principles, which seem to be in agreement with the Washington Regulations (1927):

1. Licenses for the establishment and use of "private experimental stations" are granted only to persons holding a certificate issued after an examination and specifying that the operator is experienced in the use of transmission apparatus.

(Cf. Washington General Regulations, Article 6, Paragraphs 3 and 4; Decree of December, 1926, Article II; Netherland Proposed License, Article 2.1)

2. Every holder of a license shall, unless he be dispensed therefrom by reason of his technical competence or his admitted skill, employ in his experimental transmission only the waves in the band 150 to 175 meters, during a preliminary period, the duration of which is to be fixed in each case by a decision of the competent authority.

3. At the end of this period, the holder shall, in agreement with the administrations concerned, be entitled to use other wave-lengths allotted to private experimental stations by the International Radiotelegraph Convention in force.

(Cf. Washington General Regulations, Articles 5 and 7; Decision of August 13, Article 2, Paragraphs C and D; Netherland Proposed License, Article 7, Paragraph 1.3)

4. Licenses for experimenters are of temporary duration, but they may be renewed on expiration, if proof be given of results obtained under the experiment program.

5. Private experimental stations shall operate solely in the bands allotted to them. The use of these bands may moreover be restricted in the interests of the public service or for similar reasons. (Cf. Washington Regulations, Article 5, Paragraphs 7 and 18; Decision of August 13, 1928, Article 2, Paragraphs C and D; Netherland Proposed License, Article 7, Paragraph 1.2)