The Technical World Magazine, Volume 11Technical World Company, 1909 |
From inside the book
Results 1-5 of 100
Page 8
... river to the mills in the spring . Their land is left piled high with tangled mass of branches and other re- fuse . Why should they spend time and money to clean up and make the tract safe from fire ? If fire comes there is none of ...
... river to the mills in the spring . Their land is left piled high with tangled mass of branches and other re- fuse . Why should they spend time and money to clean up and make the tract safe from fire ? If fire comes there is none of ...
Page 11
... RIVER NATIONAL FOREST , NEW MEXICO . These erosion gullies are from ten to twenty feet wide , and six to fifteen feet deep . They have appeared in the past four years . 7 solid walls of dead trees killed by the back -. 11.
... RIVER NATIONAL FOREST , NEW MEXICO . These erosion gullies are from ten to twenty feet wide , and six to fifteen feet deep . They have appeared in the past four years . 7 solid walls of dead trees killed by the back -. 11.
Page 16
... river nav- igable all the year round - instead of a dangerous and destructive trunk line . sewer - there must be at least three mil- lion acres of forests planted about its headwaters . When that is done and after the first trees have ...
... river nav- igable all the year round - instead of a dangerous and destructive trunk line . sewer - there must be at least three mil- lion acres of forests planted about its headwaters . When that is done and after the first trees have ...
Page 18
... river- thus causing floods - the trees may not be cut at all , except such a small portion of them as each year reach maturity . Most important of all , when it comes . to recreating the devastated forests , the Germans do not tax ...
... river- thus causing floods - the trees may not be cut at all , except such a small portion of them as each year reach maturity . Most important of all , when it comes . to recreating the devastated forests , the Germans do not tax ...
Page 20
... River above Philadelphia , while fourteen miles of canal will connect Delaware Bay and Chesapeake Bay . Back of Hatteras the problem is simple . In none of these links are there engineering diffi- culties of any great magnitude to ...
... River above Philadelphia , while fourteen miles of canal will connect Delaware Bay and Chesapeake Bay . Back of Hatteras the problem is simple . In none of these links are there engineering diffi- culties of any great magnitude to ...
Other editions - View all
Common terms and phrases
accidents acres alfalfa American apparatus automobile average boat bridge briquets building canal carried castor bean cause cent Chicago coal coast cofferdams color concrete construction copper cost crop CULLINAN DIAMOND cylinder death device disease dollars electric engine experiments fact farm feet field filter band fire forests furnace gyroscope heat Hertzian waves hour hundred inches invention inventor iron Lake land light machine MEADOW VALLEY WASH means ment metal method miles million Mojave Desert motor operation pipe plant poison possible pounds prairie dogs President pressure produced pump Queensboro bridge rail railroad railway result river schools shaft ship Short Tons side speed station steam steel strychnia supply surface tank Technical World Magazine tetanus thermit thousand tical tion tons tuberculosis United vessels wheel wire York