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Inventory & Cruising Newsletter

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John F. Bell Ph.D & Associates, 



Announcing the 2017 Variable Probability Sampling Workshop
April 3-7, 2017
LaSells Stewart Center, Oregon State University

The Variable Probability Sampling course is offered as a service to foresters. Two popular methods of timber cruising will be covered in detail: variable-plot sampling and 3-P sampling (Probability, Proportional to Prediction). The course is suitable for relative beginners as well as those with experience who like to brush up on the principles and up-to-date computation techniques using hand calculators and microcomputers. Field exercises using both techniques are an important part of the course.

Participants are invited to submit problems they have encountered in either field application or office computation in variable-plot sampling for a special session during the first part of the program. All such questions may be submitted in advance to the short course director, Dr. John Bell, before March 18, 2017.

For more information please see the attached flyer and visit our website at http://blogs.oregonstate.edu/variableprobability2017/


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Forestry Field Reference Book

Jim Kiser (Instructor of Forest Engineering, Resources, and Management at Oregon State University) has just published a handy forestry reference book. The book is distributed by John Bell and Associates. From the preface:

"the text is meant to serve as a reference for practicing foresters and other natural resource professionals who work with field measurements as a part of their job requirements. Although primarily focused on timber and timber stand, the book also serves for typical engineering of forest forad layout with an added section on curve layout formulas and tables. The intent of this book was not to provide an inclusive set of forester's tables, but to pull together the more common tables necessary to the day to day activities..."

Contact us to acquire a copy of your own.

A New Book

Kim Iles has published his third book, “The Retread, The Reject and the Tower Statistician”. 417 pages, bonded leather cover, $45 plus shipping. The style is very similar to his second book. The same “OH” character from the second book and the chapter six memos from his first book (Sampler of Inventory Topics) is continued. It has 61 short (4-5 pages) chapters, mostly about solutions to real problems with some practical psychology and statistical theory woven into them, with suggestions about professional development.

If you are interested, you can check out the details at his website : http://www.island.net/~kiles/

In regard to the Sampler of Imventory Topics many of you have received at the OSU short course:

Any errors that have been noted in the first two editions have all been updated and are on Kim’s website. When the Relascope spreadsheet was first done (with the first edition) there was a small error with some combinations of bars for the very first books sold. Kim tried to trace down all the owners who had that on their book CD, but if you own the first printing (grey color) download the one that has been here on the John Bell website for many years, and replace the one you have - just in case.


Items of Interest:


 Past Features & Information

 What's New (11/15/2016 )

 The Statistics for Practical People Series
(Published April 1988 - October 1989)
The use of “Rectangular Grids” in sampling. (07/19/2016)
Our 3P Sampling Collection How do I choose the frequency of for sample trees with different strata or products? (09/7/2015)
Is It True That... Our series addressing myths and other folklore about forest sampling. A charming Australian view of the world (03/01/2014)
It's the People... Series Is this definition adequate?  (03/01/2014)
The Compassman, The Nun, and the Steakhouse Statistician OOPS – I used the wrong plot radius factor for the borderline trees -- now what??  (03/01/2014)
Browse Our Newsletter Index Permanent Variable Plots  (11/11/2012)
  Imaginary Heights in Variable Plot Cruising  (02/12/2012)
Downloads: Quality Control in Computers and Publications (01/08/2012)
Camp Riley Cruise Experiment (04/29/2011)
The Point of Reading Old Papers -- CAREFULLY (10/13/2010)
Isn’t the number of trees quite variable with VP sampling?  (03/30/2008)

Some Important People in Our Profession

Walter Bitterlich
Walter Bitterlich
David Bruce
David Bruce
Frank Freese
Frank Freese
George Furnival
George Furnival
Lou Grosenbaugh
Lou Grosenbaugh
Ingvar Haglof
Ingvar Haglof
Benno Hesske
Benno Hesske
Bert Husch
Bert Husch

Some Interesting Forestry Links:

Check it out!Ken Brauner, Artist
Check this website out for great Christmas Card ideas!

Western Mensurationists
Midwest Mensurationists
Growth Model Users' Group
Kim Iles & Associates
D. R. Systems
FOB -- Relscope Information/Sales
Western Forestry and Conservation Association
Northern Interior Cruising Committee
Oregon Department of Forestry Log Prices (Updated Quarterly)
American Forest and Paper Association
New Zealand Institute of Forestry
Forest Technology Systems of America
Information on Forestry Schools
The Institute of Foresters of Australia

Send Mail to John Bell

Updated 11/15/16