Show teachers to operate cooperate co with fore forest st service in tree ree study teachers throughout the auntry buve been invited by tho united states forester to co operate cooperate with willi the forest ser vice in an effort to obtain more definite defini ie knowledge of the cliar char of the most important forest trees of the united states to ro do this aliis it will be necess sary to obtain a number of 0 vol observers who will col act ct m material atrial e on theotime tho time I 1 of leafing 9 blob nud fruiting of tho the bariou k kinka ill its d f forest tun B F in 11 ins his lettl r inviting tho 1110 cooperation 1 of I ahe he teachers fortl fort for L ter pinchot says kuo knowledge ledge or of this kind is greatly needed and will be of value from the standpoint botn of education and of practical for for ed educational purposes the results obtained for each eacel species averaged and presen presented tied gruppi call by means of colored charts will be available to all who aho vho tire are interested in the subject and particularly to schools they will form virtual tree calendar and will he be val bable aids to nature study children can readily lie be interested abre te rested sted i in n the ti actual in the actual work of obtaining rac records ar ds i this should form a an ja r 0 out u t door do or feature of th the s school work that should serve serre to de celop tho faculty of accurate observation and at the same time to promote 0 an interest st in for forestry foresta estr which bilay lead to lo a better bett er ap of Us its aima abin and enoth it may also prove to be a addition to botany courses for older students A stu ady of this abi kind will bo be of great gabat value i t to 0 ji pr forestry since the proper treat rt forests depends partly u upon p oil a knowledge of these characteristics acte cs of trees for ix x ample the time of year at winch which a tree leafs out and blos blossoms sonis is one of the indications h i to whether r or not it is frost rot hurdy in iti a given region region and ant the length of time thill a tree is in leaf influences fluen ces the gro growth etli il i 1 is able to make during the sonson sev son lallo knowledge of the time when heeds f each species ripen in v vari iri ts is localities is of great value to those who are collecting so c f since seed often deteriorates or is is ea eaten tell by squirrels and hi 1 ids it if not gathered and stored sis as son its s ripe another result of this study will be a more antim to inov knowledge of clini climate ato as manifested by plant growth for differences in clit climate nate fire are shown by plant life if 8 ns as well as by instruments and a preliminary ry idea can thus be gaino gain 0 d a as s to whether a given region its is suited to a valuable tree tm winch it dt is desired to in i traduce there many such 6 x H n s 11 ampley ples could u 0 uld bu be g given i V e n but abut s eaf i bui nt has been said lu show afi that the ille of these theme cheer abs er fh 3 i ai vati onswill he be ft a reul ren I 1 help to practical j forestry orear 1 y in to io Vs 4 their general interest und mia edu T cat rational ional value volunteers will ivill t laiter he be supplied su P blied flied with j b 11 64 1 1 ions rind and charts containing ah the e information thay help to gather gallier 1 as a return for tho services reo ren it dered f on request tho ole forest service 5 I 1 5 will he be glad to send forms upon which to ie record ord data and ft a pamphlet c containing olita illing full in y as to tb the nature of chbr observations andhor they ai to le made in ad e 7 T |