48 U. S. COAST AND GEODETIC SURVEY 



for instruments and general property must be made on form 12. Req- 

 uisitions for stationery and instruments should always bei made on 

 separate forms, as they are handled by different sections of the office. 



142. Requisitions for supplies may be made from time to time as 

 needed, but it is recommended that at a primary tide station the 

 quantity of any article requested in a single order be sufficient for a 

 period of about 1 year. The following list is suggestive of the quan- 

 tity of any article to be included in a single requisition : 



Tide rolls for standard tide gage 12 



Form 489 (label for tide gage record) 20 



Form 660 (weekly report of tide station) ^ 50 



Form 457 (density and temperature observations) 25 



Form 413 (letter transmitting field records) 50 



Form 110 (frank, mailing addressed to Director) 20 



Form 12 (requisition for instruments and general property) 10 



Requests for stationery (short form) 20 



Letter paper for field use, medium tablet 1 



Envelopes addressed to Director, SVs by 8% inches packages 2 



Envelopes, manila, QVz by 12 inches package 1 



Pencil leads, Scripto, black, BB do 1 



Cheesecloth for cleaning tide gage yards 3 



Tabulation forms (if observer tabulates his marigrams) : 



Form 138 (high and low waters) 25 



Form 362 (hourly heights) 50 



Form 455 (comparative readings) , 25 



143. Emergency expenses. — Tide observers are not expected to 

 incur any expenses in the operation of the tide station unless espe- 

 cially authorized by the Director of the United States Coast and 

 Geodetic Survey. Unless an emergency exists, the tide observer 

 should inform the office of any needed repairs and then wait for in- 

 structions. Time will be saved if the tide observer obtains an esti- 

 mate of the cost of making the needed repairs and submits this when 

 informing the office of the need for the repairs. If the cost is more 

 than nominal, at least three estimates are to be obtained when 

 possible. 



144. In case of an emergency in which there would be a considerable 

 loss of record if the observer waited until receiving instructions from 

 the office, he may make immediate arrangements for having the work 

 done, provided the cost is reasonable and does not exceed $5. In 

 such cases arrangements will be made to have payment made directly 

 by the office to the party doing the work, or the observer will be pro- 

 vided with suitable forms for obtaining necessary receipts. 



145. When emergency work of considerable magnitude is necessary, 

 the tide observer should inform the office by telegram, which is to 

 be sent collect and not prepaid by the observer. 



146. Furnishing information to public. — All employees of the 

 United States Coast and Geodetic Survey are expected to be cour- 

 teous to the public when inquiries are made concerning their work, 

 but the regulations prohibit the furnishing of copies of the records 

 without authority of the Director. When a tide station is so situated 

 that there may be more or less frequent calls by local authorities for 

 data from the tide-gage record, and this is brought to the attention 

 of the office, permission will usually be granted to the tide observer 

 to supply such information upon request, but when this is done the 

 party to whom the information is given should be informed that the 

 results are preliminary and subject to revision by the office. 



