Biography
Born on August 5, 1869, inWork
Starting in the early 1900s, Gillette wrote and co-wrote more than a dozen books on topics ranging from rock excavation, to management and cost accounting, to his latest work in the 1930s on forecasting weather.Rock excavation: methods and cost, 1900s–10s
Gillette his first book onThere are few engineering works of magnitude that do not involve the excavation of earth. Indeed the cost of earthwork forms one of the greatest of cost items inGillette said that this was "the first published volume treating of earth economics in a comprehensive way." In line with this topic Gillette in 1904 published ''Rock excavation: methods and cost''. In its preface Gillette (1904) gave an introduction of mineral production and rock excavation:canal Canals or artificial waterways are waterways or engineered channels built for drainage management (e.g. flood control and irrigation) or for conveyancing water transport vehicles (e.g. water taxi). They carry free, calm surface flow un ..., inreservoir A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including contro ...and inrailway Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a pre ...construction, nor is it an inconsiderable item in the construction of roads, sewers or water works. What will this excavation cost? This is a question that the engineer first asks himself in making his preliminary estimates. Later the same question confronts the contractor. To the engineer an erroneous answer may mean loss of reputation, to the contractor it assuredly means ruin where the work is extensive. A glance at the wide range in contract bids for most earthwork jobs will convince anyone that few contractors do more than guess at costs. While the numberless engineering structures that have cost more than the preliminary estimates prove quite as conclusively that engineers too often guess also.Gillette (1903, p. iii)
The value of theIn 1916, Gillette published the enlarged ''Handbook of Rock Excavation''.mineral In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed. ( ...products of America annually exceeds $1,000,000,000. Forexplosives An explosive (or explosive material) is a reactive substance that contains a great amount of potential energy that can produce an explosion if released suddenly, usually accompanied by the production of light, heat, sound, and pressure. An expl ...alone the sum of $20,000,000 is expended each year, and it is well within limits to say that fully twice as great a sum is paid out to drillers and blasters. When we consider the labor, the power and the powder required to mine and to quarry products in the aggregate so enormously valuable, we can not fail to be impressed with the scantiness of literature on the economics of rock excavation. A dozen years ago, when called upon to estimate the cost of some open cut rock excavation, I was astonished to find no text book that in the least served to guide me. I subsequently learned also that most of the matter to be found in the few books on blasting was either theoretic or too meagre to be of material value. What was true then has unfortunately remained true.Gillette (1904, p. iii)
Construction cost keeping and management, 1900s
In the 1900s Gillette published as series of books on the more topic of construction cost keeping and management, which included: * ''Economics of road construction'', first published in 1906. * ''Handbook of cost data for contractors and engineers'', first published in 1907. * ''Concrete Construction: Methods and Cost'', first published in 1908, and * ''Construction Cost Keeping and Management'', written with Richard T. Dana and first published in 1909.Offices appliances
In ''Construction Cost Keeping and Management'', Dana & Gillette (1909) gave an overview of the many appliances which were used in his days to compile records, and process information in business offices, includingFundamental divisions of cost
In ''Cost keeping and management engineering'', Dana & Gillette (1909) went into the topic of the fundamental divisions of cost. They made clear, that such a subdivision can be illustrated (see image) but is not complete. Dana & Gillette explained:... it would be futile to attempt to make a complete outline that would apply to any contracting firm. Keeping books is writing the history of business transactions; hence, it is obvious that no outline of the 'history' can be made until the 'events' are known. Even though two firms are in the same line of work, these 'events' are never of quite the same nature in both concerns. Therefore, it is clear that before an outline of the records of a concern can be made, that particular concern must be studied to learn the nature of all its transactions. For this reason no general discussion of the methods of keeping accounts for any line of business can hope to be more than thoroughly suggestive.Dana & Gillette. ''Cost keeping and management engineering,'' (1909) pp. 128–130Dana & Gillette continued that "every source of expense to a contracting business contributes to the total cost of the contracts carried by the firm. A certain proportion of the Office Rent, the Legal Expenses in connection with lawsuits, the cost of making unsuccessful tenders, etc., are just as much a part of the cost as wages paid to carpenters and bricklayers. To allocate these various costs seems a difficult problem, but the first step is simple, for each item can be readily classified..." They proposed the following divisions : * ''Direct Expense'': Direct Expense includes all expenditures that pertain to only one contract, and that can be charged to that contract without subdivision or apportionment. * ''Overhead Expense'' : Overhead Expense includes all expenditures that pertain to all the contracts carried, and that cannot be charged to the individual contracts without subdivision or apportionment. The Direct Expense Account is divided into two parts: # ''Field Expense'': Field Expense includes all items which can be directly charged to the work in the field. # ''Sub-Contract Expense''. Sub-Contract Expense includes all amounts paid for work done by sub-contractors. Under Field Expense we have four subdivisions : # ''Labor'': All expense for labor (except when sub-contracted) employed in the field is charged under Labor. # ''Materials'': Expenditures for materials which are found in the completed structure, and which are paid for according to the contract, are charged under Materials; e. g., Cement, Sand, Crushed Stone, Bricks, etc. # ''Supplies'': Supplies include all such items of material as are necessary to the carrying on of the work, but which are partially, or wholly, destroyed in the process of construction; e. g.. Oil, Waste, Coal, Rope, Hose, etc. # ''Miscellaneous'': General items of expense which do not come under any of the first three classifications, but which can be directly charged to the Field Account of a contract, come under Miscellaneous; e. g., Plant Rental, Plant Depreciation, Telephone and Telegraph, Postage, etc. Dana & Gillette (1909) continue with a further description of the analysis of overhead expense accounts.
Time sheet
In his 1908 ''Cost Keeping and Management Engineering'' Gillette presented a cost keeping system and its application to sewer work, which incorporated an advanced type ofThe essential and fundamental feature of the system depends upon the form of the time sheet used (front view of time sheet (first image), and back view (second image)). The time sheet is folded when in use by the timekeeper and carried in a cover, making the same of book size, and practically the same form as the ordinary time book. On the left hand side of the front appears the time sheet in the usual form.Gillette & Dana. (1908. pp. 164–193)
This time sheet is arranged so that it may be used for a gang reporting time weekly, and is also used where the time sheet is turned in each day, in which latter case the lines under the column dates are ignored and the time placed in the total hour column. On the left hand side appears first the timekeeper's check column...Gillette concluded that "this form of
Forecasting weather conditions, 1920s–30s
In the last decennia of his working live Gillette had focussed his attention to the study of weather cycles, and in 1937 published his last book, entitled ''Climatic Cycles Reflected in Geological Data''. A 1943 articleScience and the secret doctrine, Electronic CyclesFor many years Mr. Halbert P. Gillette ... has made an intensive study of weather cycles. In the beginning his theories made such bizarre reading from the point of view of scientists, that little attention seems to have been paid to them. Essentially, they were based on theories of interflow of electrons between the earth, the sun, and the other planets. The real nature of electrons, and their ubiquity, now being better recognized, his ideas fall more into line with the thought of the day.And furthermore:
Gillette has sought to tie up his theories to the clay varves, or seasonal layers, in lake deposits. Among the most important of the cycles discovered, is one of approximately 605 years, subdivided into three equal periods of less importance. This is equal to 51 orbital periods of Jupiter. He believes that it represents the orbital period of Pickering's undiscovered "Planet P." Pickering's estimate of this orbital period was 656 years.
Gillette claims that whenever a planet is in solar longitude either of 108 or 288 degrees, it causes a peak of a rainfall cycle, whether evidenced by rainfall records, tree rings, or varves. Such peaks coincide with sunspot maxima. In addition to the major cycle produced by each planet, it causes harmonic sub-cycles of 1/3, 1/9, 1/27 of the length of the major one, etc. The great maxima and minima of rainfall, of course, come when peaks and depressions of cycles and subcycles coincide. According to Gillette we are progressing toward a period of great drought whose apex will be 1984. Volcanic upheavals and compass variations appear to have cycles closely coinciding with the major rain cycles, he says...The article confirms the "this coincidence of cycles is of vast importance in the occult side of nature; as is well known to Theosophists, the years 1897-98 signalized a coincidence of cycles, the longest of which was about 5,000 years, of such intensity that the entire world order was upset by it."
Selected publications
* Gillette, Halbert Powers.References
;Attribution This article incorporates public domain material from the Dana & Gillette. ''Cost keeping and management engineering,'' (1909) pp. 128–130External links
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