4 Preface. 



work of the writer's pupils. It may be added that not more 

 than ten or fifteen minutes was given nature study twice a 

 week in most grades ; in one grade one lesson per week of 

 thirty minutes' duration was given. 



Thus it is clear that this subject need not usurp the place 

 of the time-honored branches. Rightly used it becomes a 

 basis for much of the language- and number-work, and is 

 made in every sense an integral part of our school-work. 

 It may be added that, in the writer's opinion, this work 

 should be given regularly and systematically. 



