40 



HARDWOOD RECORD 



A Book on Logging 



A book contniniug nearly six luiiidi'cd pages has been Issued from 

 the press of John Wiley & Sons, of New Yorl< and London, the well- 

 known publishers of standard books on all phases of forestry, logging, 

 and lumbering. The author of the work is Ralph Clement Bryant, pro- 

 fessor of lumbering in Yale University. The book was prepared for 

 use as a textljook in forest schools, but its usefulness will not stop 

 there, for it is valuable to the operator in the woods, to the sawmill 

 man, and to the timber owner. It is not only a textbook for the stu- 

 dent bat it is a readable, interesting, and instructive treatise for all 

 who work in the woods or with forest products. It covers the field 

 more thoroughly than any other single book. 



After a very full discussion of forest resources, timber ownership, 

 commercial tree species, timber insurance and timber bonds, the subject 

 of logging is taken up. Beginning with labor, camps and tools, the 

 discussion follows the various operations, such as felling the trees, meas- 

 uring the logs, transporlation from forest to mill, skidway and storage 

 Bites, aud all else that the practical operator should know. In the mat- 

 ter of log transportation nlone, the following topics indicate the scope 

 of the discussion : "Hand logging and animal snaking," "sleds and 

 sled hauling," "wheeled vehicles," "power skidding," "aerial tramways," 

 "timber slides and chutes," "forest railways." 



The construction and operation of the logging railroad is an inter- 

 esting subject which the author handles from the engineer's and the 

 practical man's standpoint, separate chapters being given on "inclines," 

 "motive power and rolling stock," and "loading and unloading log 

 cars." 



Water transportation is treated no less fully than is transportation 

 by land. Chapters under this heading are "floating and rafting," and 

 "flumes and sluices." Another valuable chapter gives a summary of 

 logging methods in speciflc regions. The minor industries, which in- 

 clude turpentine orcharding and the harvest of tan bark, are given a 

 prominent place. 



The appendix is a veritable encyclopedia of useful information for 

 the logger and lumberman, and consists of terms used in logging, log 

 rules and tables of cubic contents, log grading rules, wage lists, stump- 

 age values, and estimates of standing timber in many of the states. 

 The book is illustrated with 133 pictures of scenes, processes and op- 

 erations. Numerous books and reports are cited for the guidance of 

 persons who may want fuller information on particular subjects. 



It was inevitable that such a book as this should appear, because 

 there is a genuine demand for it. It will not displace any other work 

 on the subject, but will occupy a place of its own. The author states 

 in his preface that the work was prepared tor forest schools, but it is 

 a safe prediction that the largest buyers will be lumbermen, from the 

 lumberjack to the largest operator. The price is 313.50 net. 



Lidgerwood Overhead Skidders 



The Lidgerwood Manufictiiring Company of OG Liberty street. New 

 York, has issued bulletin 54, setting forth the merits of the latest 

 improvements in overhead skidders, as they have been developed by us- 

 age with the large timber of the Pacific coast. This logging device is 

 the result of constant improvement during twenty-seven years, since it 

 was first used in southern cypress swamps. Its field has been enlarg- 

 ing ever since, and logging by that method is now common in all im- 

 portant timber regions. By its employment, logging can be done on 

 tracts where horses and oxen cannot go, and. where the construction 

 of steam roads would be expensive i£ not impossible. Overhead skid- 

 ding lands the log more cheaply and in better condition than it can be 

 done in any other way. The logs are brought in with one end sus- 

 pended, or it necessary, they can be carried bodily through the air. 

 The apparatus is operated by a crew of from nine to thirteen men. 



The Future Cut of Southern Pine 

 Yale University has published a bulletin dealing with the future 

 possibilities of shortleat and loblolly pine in the South. The study was 

 made on a large tract in Arkansas and Louisiana, and the conclusions 

 apply particularly to that locality, but with certain modifications they 

 may be applicable in many parts of the South. It is claimed that for 

 a period of one hundred years a tract should produce 150 feet, board 

 measure, per year, under forest management. Part 1 of the bulletin 

 was written by Herman H. Chapman, jjrofessor of forest management 

 In Tale. A second part, dealing with utilization of timber with a view 

 to reducing waste to a minimum, was written by Italph C. Bryant, pro- 

 fessor of lumbering. 



Triangular Crossties 

 The Great Northern Railway has been experimenting with three-sided 

 ties. A considerable number have been in use for some time and the 

 result is said to be satisfactory. As far as saving timber is concerned 

 there will be no economy, since the new style tie contains as much 

 wood as the old. The upper face is twelve inches. The claim is made 

 that the shape cau.ses the piece of timber to imbed itself in the ballast 

 more firmly, and it is less liable to hocome loose and roll about as the 

 trains pass over. 



Connecticut Forest Study 

 Yale University has published a bulletin by Ralph C. Hawle.v, as- 

 sistant professor of forestry in that institution, on "a working plan 



for the woodlands of the New ll.i\en Water Company." The interest 

 of the public in this matter is due to the methods employed and the 

 results attained in scientific forestry. Whatever proves to be practical 

 on the tract of 8,000 acres in Connecticut may be safely undertaken on 

 a larjter scale where conditions are similar. The work has been in 

 progress about twelve years, aud the bulletin gives the result up to the 

 present time. 



An Excellent Arbor 



E. C. Atkins & Co., Inc. of Indianapolis have just secured a patent 

 on a sliding sleeve arbor for use ctn automatic saw sharpening machines. 

 The machine insures the proper finish in both the face and back of the 

 tooth, no matter how irregular (he feed s>t the machine may be. It 

 satisfactorily overcomes the burning of saw teeth, which hardens the 

 metal, renders the tooth brittle, causes it to crumble in the cut, making 

 it impossible to properly swage. 



The accompanying illustration shows the arbor In position and attached 

 to the head of a Hanchett machine. A Covel saw or any standard gum- 

 mer can also be used in connection with this arbor, or it can be made of 

 proper specifications for any grinding machine. 



The upper or inside spring may be removed and the hub holding tht 

 grinding wheel adjusted to any desired distance from the stationary 

 collar, thus giving an automatic grinding action. This hub may be placed 

 against the collar, which will give a stationary grind on back of tooth. 



The lower spring is held in place by two small jam nuts, which regu- 

 late the pressure on the spring. At no lime will the wheel grind into 



AI'KIN8 .\.\ V SLIDING SLEEVE ARBOIt 



the face or back of the tooth so as to injure it. After adjusting, its work 

 will require no supervision from the filer, so there is no possibility of 

 injuring the saw tooth. 



It is stated in the instructions that should the feed finger fail to bring 

 the tooth up to the Correct position, the lower spring releases the grind- 

 ing wheel sufliciently to prevent burning. It the feed finger brings the 

 tooth to position too quickly, the upper spring releases the grinding wheel, 

 thus preventing injury to the tooth. 



The arbor is furnished complete with all attachments and wrenches 

 for adjusting the collar to any standard automatic saw sharpening or 

 grinding machine. 



The Smithsonian Annual Report 



Those who are interested in keeping up with the latest advance in 

 scientific investigation will read with profit the annual report of the 

 Smithsouiau Insiitutlon, Washington. D. C. for 1912. It is a volume of 

 780 pages, with numerous illustrations, and its scope is indicated by a 

 partial list of the special articles it contains : The Year's Progress in 

 Astronomy : Tlie Spiral Nebulae ; The Radiation of the Sun ; Molecular 

 Theories and Mathematics ; The Connection Between Ether and Matter ; 

 Experiments with Soap Bubbles ; Measurements of Infinitesimal Quanti- 

 ties of Substances : Latest Achievements in Chemical Industry ; Holes in 

 the Air ; Recent Great Eruption of the 'Volcano Stromboli ; The Glacial 

 and Post-Glacial Lakes of the Great Lakes Region ; Applied Geology ; The 



