Bulletin of the Illinois State Laboratory of Natural History, Volume 12

Front Cover
The Laboratory., 1918 - Natural history
 

What people are saying - Write a review

User Review - Flag as inappropriate

After readig this book I asked myself the following:
Need to lose weight?
How to lose weight fast ?
How to lose weight in a week ?
And now ... read my successful story here
==>> http://herbsin.com/JennifersWeightLossDiary.html
Some excerpts from my diary:
- and equipment exercise abdominal personal care fitness
- medical herbs
- exercise abdominal care and fitness personal equipment
- womens natural health center herbal remedies
- herbal blood pressure
Good Luck!
 

Contents

Other editions - View all

Common terms and phrases

Popular passages

Page 47 - This characteristic arrangement is.shown in Figures 38, 40, 41, and 44. There are often projections from the head, much as in the Aegerioidea, but there are never as many head sutures present. The thorax shows the alar furrows in many instances but they are never as well developed as in the preceding superfamily, and never have sharp chitinized edges. The abdomen also shows a greater degree of specialization and its fixed caudal segments are much more strongly consolidated, the sutures being very...
Page 577 - CALVERT, PP 1893. Catalogue of the Odonata (Dragonflies) of the Vicinity of Philadelphia, with an Introduction to the Study of this group of Insects.
Page 465 - ... the gastric caeca. The large sperm sac and ejaculatory duct of the vas deferens form a compact snarl in somite XII in the immediate neighborhood of the atrium. In addition to the type specimen taken by Professor Nachtrieb from the isthmus of a sheepshead at Lake Pepin, the writer has also examined specimens in the collection of the Illinois State Laboratory of Natural History taken from the same host at Henry and Peoria, Illinois. Habits — Hemingway gives the following account of what is known...
Page 472 - There are two representatives of this species in the collection of the Illinois State Laboratory of Natural History, both of which were collected at Havana, Illinois.
Page xxviii - The wilting coefficient of a soil is then defined as the moisture content of the soil (expressed as a percentage of the dry weight) at the time when the leaves of the plant growing in that soil first undergo a permanent reduction in their moisture content as the result of a deficiency in the soil-moisture supply.
Page 121 - ... are also spiracular furrows found in many species. These vary in number and form, and are mostly found in the Geometridae. The families of Notodontoidea may be separated as follows : a. Metathoracic wings never visible on the ventral surface of the body. b. Maxillae usually more than three-fifths the length of the wings, if not, then the caudal end of the body with hooked setae, or the spiracles of the third abdominal segment concealed by the wings and those of the sixth segment farther ventrad...
Page 128 - Maxillae one-third or less the length of the wings ; both prothoracic and mesothoracic legs meeting on the meson caudad of the maxillae ; abdomen very finely punctate, b. Thorax and abdomen thickly covered with very fine short setae ; cremaster a stout spine about one millimeter in length with two short recurving hooks at the tip, each of which bears two or more very fine setae.
Page 576 - ALFRED. 1915. A study of the food habits of the Hawaiian dragonflies or pinau, with reference to their economic relation to other insects.
Page 574 - ... some advantage as a standard from which to estimate the deviations of a given individual. LITERATURE CITED Papers Marked * Contain Extensive Bibliographies. Alpatov, WW — 1929. Growth and Variation of the Larvae of Drosophila melanogaster.
Page 129 - ... between the ninth and tenth abdominal segments ; cremaster not as described above. c. Entire body surface with coarse deep punctures ; cephalic margin of the movable abdominal segments with large lunate punctures and a ridge with a row of large distinct punctures just caudad of it ; cremaster short, rugose, slightly bifurcate; bearing six long hooked setae ; mesothorax never with a deeply pitted caudal margin. Symmerista.

Bibliographic information