MANUAL OF TIDE OBSERVATIONS 47 



died by the usual facilities of the observer and the circumstances 

 must be reported to the office. 



136. Weekly report (form 660). — Tide observers are required to 

 forward to the office at the end of each week a report on form 660. 

 The daily notes should correspond to those entered on the marigram 

 itself, but the tube readings may be omitted in this form. If staff 

 readings are taken more than once during the same calendar day, 

 a single set will be sufficient for the weekly report, but all such read- 

 ings are to be noted on the marigram. In the column of "Remarks" 

 there should be noted such items as "Float well cleaned," "Float wire 

 broken," "Counterpoise wire off drum," "Time clock stopped at 

 11 : 15," etc. The operating troubles are to be explained in detail on 

 the back of the form, which must also include all other information 

 requested. 



137. Forwarding records to office. — Unless the tide observer tabu- 

 lates the records, the tide roll is to be forwarded to the office imme- 

 diately after removal from the gage after the close of each calendar 

 month. If the observer does tabulate the records, the work must be 

 expedited and the records forwarded promptly as possible, as the office 

 has frequent calls for information based upon them. It is expected 

 that the tabulations will be completed and the records forwarded 

 within 1 week after the marigram has been removed from the gage. 



138. Before forwarding the tide roll, it should be rewound to bring 

 the record on the inside with the first of the month at the beginning. 

 A label, form 489, is to be filled out as completely as possible, except 

 that at a primary tide station it will be unnecessary to repeat the 

 latitude and longitude each month. The marigrams are numbered 

 consecutively from the beginning of the series regardless of calendar 

 years. The label is to be pasted on the outside of the marigram in 

 such a manner as not to seal the roll. As a protection against tearing, 

 a few inches of the paper at the beginning of the roll should be folded 

 inward, making a smooth edge of double thickness. The label is then 

 pasted parallel to this edge and about 1 inch from it, with the bottom 

 of the label towards the edge. 



139. The roll should now be well wrapped for mailing and an 

 addressed franking slip (form 110) pasted on the outside. Two cop- 

 ies of form 413 listing the record must be sent under separate cover. 

 This form is used only for the formal transmission of records, and 

 any matters requiring special attention should be sent as separate 

 communications. 



140. Shipment of Government property. — Shipments of instru- 

 ments or other Government property when too bulky to be sent by 

 mail are sent by express or freight on Government bill of lading. 

 When it is necessary for the tide observer to make any such shipment 

 to the office he will be provided with a bill of lading for the purpose, 

 and no payment of charges, other than drayage which will usually be 

 arranged for in advance, should be made by the tide observer for 

 shipments sent or received by him. Form 412, in duplicate, is used as 

 a transmitting letter when shipping instruments to the office. 



141. Requisition for supplies.— A requisition for stationery for use 

 at a tide station may be made by ordinary letter or by a short form 

 requisition letter mimeograph copies of which may be obtained from 

 the Chief, Division of Tides and Currents, upon request. - Requisitions 



