THE LOOSE LEAF SYSTEM 

 OF LABORATORY NOTES 



FOR GUIDANCE IN THE DISSECTION AND 

 ELEMENTARY STUDY OF ANIMAL TYPES 



Prepared by 



THEO. H. SCHEFFER, A.M. 



Assistant Professor of Zoology, Kansas State Agricultural College. 



Octavo ; vi + 112 pages. Strong Adjustable Cloth Covers, Cloth, $1.00 net. 



Excerpts From the Preface: 



INSTRUCTORS in biology very generally direct the laboratory work by means of 

 written or printed guides placed in the hands of the student. These are sometimes 

 hastily prepared for the occasion, or, if more elaborated, the sheets furnished the 

 student at various times are not uniform in size and will not fit in with any system of 

 notes which he may be keeping. 



The LOOSE LEAP guides are the results of several years' experience in directing 

 zoological work in high school and college laboratories. The sheets outlining the 

 work on each type of animal are separate, so that they may be incorporated with the 

 student's drawings and notes on that particular type. The recorded information on 

 the subject is thus collected together, not only simplifying at the time the work of 

 studying the specimen, taking notes, and indexing the drawings, but making future 

 reference to the records an easy matter. Then, too, the laboratory guides being thus 

 bound in with the student's notes, do not become scattered or lost. 



The twenty-one types of animal life herein treated give the student a brief general 

 survey of the field from Protozoan to Vertebrate. Similar treatment is accorded each 

 type. It will be noted that the zoological position of each animal is given (Parker and 

 HaswelVs classification), that its habitat receives attention, and that there are hints 

 on collecting the material for class study. Details of structure that are very obscure 

 are either omitted, or, if essential, attention is called to them without demonstration. 



Synopsis of Contents: PROTOZOA. Amoeba; Paramcecium; Vorticella. POR- 

 IFERA. Marine Sponge. COELENTERATA. Fresh-Water Hydra; Hydroid; 

 Hydroid Medusa. PLATYHELMINTHES. Flat-Worm. ECHINODER- 

 MATA, Starfish. ANNULATA. Earthworm. ARTHROPODA. Water-flea; 

 Lobster or Crayfish; Centiped; Grasshopper; Spider. MOLLUSC A. Fresh-water 

 Mussel; Snail; Squid. CHORDATA. Catfish; Frog or Toad; English Sparrow. 



"The book will prove useful in high school and elementary college 

 courses." The Nation. 



"It is a most capital idea "(School Bulletin), "and is a most excellent sys- 

 tem of keeping notes." Country Life in America. 



"Loose Leaf System" is not bound in the usual manner. Each 

 leaf is separate and the whole tied into strong adjustable cloth covers, so that leaves 

 may be removed or notes and drawings may be inserted at any place. 



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