You can download the notebooks in this issue of The Mathematica Journal as a .zip file.

Download TMJ10-4.zip. (14.2 MB)

Once you have unzipped the file, you will have a directory that includes the following notebooks.

• TMJv10i4-contents.nb--Table of Contents
• ClassicPuzzles.nb--Classic Puzzles in Wolfram Demonstrations by Ed Pegg Jr
• InterpolationQuadratures.nb--Dynamic Integration of Interpolating Functions and Some Concrete Optimal Stopping Problems by Andrew Lyasoff
• makeholepaperlite.nb--Making Holes and Windows in Surfaces by Alan Horwitz
• GraphingOnSphere.nb--Graphing on the Riemann Sphere by Djilali Benayat
• PanelMethods.nb--Airfoil Aerodynamics Using Panel Methods by Richard L. Fearn
• MathCode.nb--MathCode: A System for C++ or Fortran Code Generation from Mathematica by Peter Fritzson, Vadim Engelson, and Krishnamurthy Sheshadri
  
  Corner10-4.zip is not included in TMJ10-4.zip. After the file has been downloaded and unzipped, Corner10-4.nb should be placed in the TMJ10-4 directory.
• Corner10-4.zip--(74.7 MB) The Return of the Riemann Surface by Michael Trott

Additional Material files not included:

• Fearn.zip--(16 KB) Airfoil Aerodynamics Using Panel Methods by Richard L. Fearn
• ImplicitEquOnSphere.nb--(328 KB) Graphing on the Riemann Sphere by Djilali Benayat
• Lyasoff.zip--(3.4 MB) Dynamic Integration of Interpolating Functions and Some Concrete Optimal Stopping Problems by Andrew Lyasoff