Digital Commons Network^™

Die Bienenfauna Von Ostpreußen, J. D. Alfken

A

In verschiedenen Gegenden Deutschlands, so in Brandenburg, Posen, Sachsen und WestpreuBen, sind seit langerer oder kurzerer Zeit Forscher und Sammler auf Anregung von Vereinen hin oder aus eigenem Antrieb tatig, die Apidenfauna der betreffenden Gebiete festzustellen. In OstpreuBen hat sich die Physikalisch-okonomische Gesellschaft zu Konigsberg auf Veranlassung von Herrn Kreisarzt Dr. P. SPEISER, jetzt in Labes in Pommern, die Aufgabo gestellt, die Provinz in apidologischer Bezichung zu durchforschen. Zu diesem Zwecke wurde ich, nachdem ich im Jahre 1909 die im Sommer lebenden Bienenarten gesammelt hatte, durch Herrn Professor Dr. LUHE als Vorsitzenden der faunistischen Sektion der genannten wissenschaftlichen Vereinigung, aufgefordert, …

Die Bienenfauna Von Osterpreußen Mit Analytischen Bestimmungstabellen Der Halictus- Und Prosopis-Arten, J. D. Alfken

A

In verschiedenen Gegenden Deutschlands, so in Brandenburg, Posen, Sachsen und Westpreußen, sind seit längerer oder kürzerer Zeit Forscher und Sammler auf Anregung von Vereinen hin oder aus eigenem Antrieb tätig, die Apidenfauna der betreffenden Gebiete fest-zustellen. In Ostpreußen hat sich die Physikalisch-ökonomische Gesellschaft zu Königsberg auf Veranlassung von Herrn Kreisarzt Dr. P. SPEISER, jetzt in Labes in Pommern, die Aufgabe gest ellt, die Provinz in apidologischer Beziehung zu durchforschen. Zu diesem Zwecke wurde ich, nachdem ich im Jahre 1909 die im Sommer lebenden Bienenarten gesammelt hatte, durch Herrn Professor Dr. LüHE als Vorsitzenden der faunistischen Sektion der genannten wissen-schaftlichen Vereinigung, …

Botanical Specimens (Herbarium) By Alice Ford, 1912, Alice Ford

Botanical Specimen Books

This botanical specimen book (herbarium) was collected and curated by Sara Alice Ford in spring 1912 for a Botany I course taught by John M. Holzinger at the Winona Normal School in Winona, Minnesota. These plants were collected in the Witoka area. Sara Alice Ford Einhorn (1983-1992) grew up in the Witoka Area and attended Winona Normal School, graduating in 1912. She taught in the area rural schools (Boynton and Ridgeway) before marrying Clifford Einhorn. They lived in North Minneapolis before moving back to Winona in the 1940s.

Daughter of Kathryn Jeanette Einhorn Anderson who graduated from Winona Teachers' College …

Citrus Notes-The Santa Ysabel Ranch, Charles C. Chapman

Charles C. Chapman Citrus Speeches

These are notes for an article published in by the Fullerton News.

Beiträge Zur Kenntnis Der Lebensweise Und Entwicklunsgeschichte Einiger Hautflügler, Josef Fahringer, Franz Tölg

Er

No abstract provided.

Zusätze Und Berichtigungen Zu Dr. H. Frieses: Die Bienen Afrikas. (Hym.), H. Brauns

Bo

No abstract provided.

Part I. On The Parasitic Hymenoptera Reared At Dehra Dun, Northern India, From The Lac (Tachardia) And Sal Insects, Peter Cameron

Bu

No abstract provided.

Notes On The Eastern Species Of Cerceris (Hym. Philanthidae), Nathan Banks

An

The species of Cerceris are among the prettiest of our entomophilous wasps; usually black, with bands and spots of yellow, of the general appearance of many species of Crabro. They are most abundant on flowers in July, some occur in June, and others as late as October. They are not especially shy, so are readily taken in the net.

Гнездаваньне Confusobombus Confusus (Schenck), М. Дабратворскi

Da

No abstract provided.

A Comparative Study Of The Structure And Origin Of The Yolk Nucleus, John P. Munson

Biology Faculty Scholarship

The question as to the comparative structure and origin of the yolk nucleus involves several other problems:

1. Is the yolk nucleus a normal element of the egg cytoplasm, or is it associated with pathological states of the egg, or is it an artefact due to reagents?

2. Is there a necessary connection between one form and another such that one can be derived from the other?

3. Is it an amorphous chemical substance or does it possess anything suggesting permanence of structure?

4. Does it arise de novo or is it a modification of something similar existing in the …

Annual Report Of The Director Of The South Dakota Agricultural Experiment Station For The Year Ending June 30, 1912, South Dakota State College Of Agriculture And Mechanic Arts

Agricultural Experiment Station and Research Farm Annual Reports

No abstract provided.

Citrus Notes-Agriculture, Charles C. Chapman

Charles C. Chapman Citrus Speeches

Speech presented at the Orange County Teacher's Institute. Mr. Chapman advocates for agricultural education in the primary and secondary schools. He also delves into the myriad attributes and abilities needed to be a farmer but also stresses that a farmer should be a student not only of nature but of books.

The Unexpected Occurrence Of Aleurone Colors In F2 Of A Cross Between Non-Colored Varieties Of Maize, R. A. Emerson

Department of Agronomy and Horticulture: Faculty Publications

Before the Mendelian methods of analysis became available, considerable wonder would doubtless have been excited by the "mysterious" appearance in F₂ of one colored grain-purple or red-to every five or six white ones in case of a maize cross, both parents and F, of which had only white grains. An occurrence of this sort has recently been noted in one of my maize cultures and the F2 numbers are explained here as a trihybrid or tetrahybrid ratio. The crosses in question were made primarily for a study of size inheritance and fairly large numbers have been grown. The varieties …

A Consideration Of The Physiology And Life History Of A Parasitic Botrytis On Pepper And Lettuce, George L. Peltier

Department of Plant Pathology: Faculty Publications

During the autumn of 1911, while gathering the peppers (Capsicum) in the vegetable plat of the Missouri Botanical Garden, the writer observed a fungus which was appearing as a parasite on the fruits. The peduncles were covered with a dark brown mass of conidia and mycelium, which so weakened the tissues that the fruit soon fell to the ground. On opening the peppers a number of large, flat, crust-like sclerotia, 1 cm. long and .5 cm. wide, were found to fill the interior. In most cases the seeds were also covered with the crust-like masses. The conidial stage …

Descriptions And Records Of Bees - Xl, T. D. A. Cockerell

Co

No abstract provided.

Miscellaneous Notes On Collecting In Georgia, William T. Davis

Da

No abstract provided.

Descriptions And Records Of Bees - Xxxix, T. D. A. Cockerell

Co

No abstract provided.

Records Of Bees, T. D. A. Cockerell

Co

No abstract provided.

Some Experimental Observations Concerning The Behavior Of Various Bees In Their Visits To Cotton Blossoms, H. A. Allard

A

In the past a great deal of experimental work has been carried on to determine how flowers attract insects. The conclusions reached have been various and have served to provoke lively discussions as to the relative importance of the visual sense and the olfactory sense in guiding insects to flowers.

New And Little Known Bees, T. D. A. Cockerell

Co

No abstract provided.

The Bees Of The Solomon Islands, T. D. A. Cockerell

Co

No abstract provided.

A New Psenid Wasp From Peru, T. D. A. Cockerell

Co

No abstract provided.

Descriptions And Records Of Bees - Xxxviii, T. D. A. Cockerell

Co

No abstract provided.

A List Of The Bees Of The Genus Perdita Smith, T. D. A. Cockerell

Co

No abstract provided.

Verbena Stricta Vent., Hugh C. Sampson

Specimens by Name

No abstract provided.

Descriptions Of New Hymenoptera No. 3, J. C. Crawford

Co

Most of the species described in this paper were received for determination through the Bureau of Entomology, United States Department of Agriculture, and are of economic importance. The figures made to illustrate certain details were all drawn with the aid of the camera lucida. Comparative measurements were made with an eye-piece micrometer used in the Zeiss binocular microscope.

Names Applied To Bees Of The Genus Nomada Found In North America, T. D. A. Cockerell

Co

No abstract provided.

Vitis Vulpina L., H. C. Sampson

Specimens by Name

No abstract provided.

Vitis Vulpina L., H. C. Sampson

Specimens by Name

No abstract provided.

Humulus Lupulus L., H. G. Sampson

Specimens by Name

No abstract provided.