Page 817 miscellaneous 9135 



Atlantic Coast and the 1:200,000 scale series on the Pacific Coast. By dividing the 

 text in this manner it is possible to show economically the numbers of these charts as 

 part of the folio headings on each page. The chapters are subdivided into sections 

 according to the layout of the largest-scale charts. 



Tn writing some Pilots, such as those of southeast Alaska, where the topography 

 of the region, and consequently the chart layout, is very complicated, it may be inadvis- 

 able to divide the text mto chapters according to the layout of the pertinent charts. 

 In such cases, the text should be divided by reference to the geographic features; as, 

 the major entrances from the sea, the intervening sections of the outer coast, and the 

 principal straits or sounds with their tributary waterways. (See 916, Folio headings.) 



(1) Chapter 1. — Government Services to the Navigator. — This chapter describes 

 the functions of the various federal agencies concerned with navigation, and contains 

 other information of value to the mariner that is not readily found elsewhere. Because 

 such material seldom changes, it has been assembled into one chapter and plated so 

 that it can be reprmted as Chapter 1 in all Pilots. The writer of a Pilot should avoid 

 repeating elsewhere the information contained in this chapter. 



Wlien the chapter is revised, the order of arrangement may be changed, and 

 information of a similar character may be added. Minor changes are occasionally 

 necessary, but in making them it is first advisable to consult the Editor regarding 

 Goverimient Printing Office methods. 



{2) Cha'pter 2. — This chapter contains information of a general character concern- 

 ing the region described in the Pilot, such as local services, local weather, harbors of 

 refuge, a generalized description of the inland waterways in the locality and those 

 contiguous to it, and other information of the type given in chapter 1, but which is 

 peculiar to the region. Information is also given on the extent to which navigation 

 is affected by the presence of weirs, traps, log storage, etc., in use by local industries. 



Finally, there is included information of most value to a stranger approaching the 

 region, such as descriptions of offshore currents, banks, and dangers; and of the most 

 prominent landmarks, the first landfalls, the general character of the coast, localities 

 where wrecks are most common, and the condition of surveys. 



Chapter 2 may be divided into two chapters if the extent of the material warrants it. 



(5) Chapter 3. — ^This chapter consists of a brief description of the routes usuall}'' 

 followed by vessels in approaching the region from offshore, in traversing the region, 

 both offshore and coastwise, and in running from port to port. In general, routes 

 covering more than one chapter of the text are described here. Where routes join 

 those described in other Pilots, proper reference shall be made. 



This information is followed by tabulated Directions with courses and distances 

 to be made good on the routes described. (Local Directions are given in place in the 

 text of succeeding chapters.) A standard form of tabulating these Directions (see 

 following sample) has been adopted and should be used in all Pilots. Where Directions 

 are given for a very long route, as in Alaska Coast Pilot, Part I, an additional column 

 may be used to show cumulative mileages. 



465382—44 53 



