Digital Commons Network^™

Die Bienenfauna Von Bremen, J. D. Alfken

A

Ueber die Bienen von Bremen und Umgegend ist schon eine Reihe von kleineren Arbeiten veroffentlicht worden. Die mir bekannt gewordenen finden sich nachfolgend Seite 9 verzeichnet. Das alteste Verzeichnis ist in dem Werke von Ph. Heineken: Die freie Hansestadt Bremen und ihr Gebiet in topographischer, medizinischer und naturhistorischer Hinsicht, 2. Bd., Bremen 1837, pag. 172 und 173, enthalten. Darin werden die Naman von 49 Bienenarten aufgefuhrt, von welchen 5 zu den Synonymen gestellt werden mussen.

Eine Neue Deutsche Andrena- Art. (Hym.), J. D. Alfken

A

Schwarz, Kopf und Thorax oben graugelb, leicht verblassend, unten weifslich behaart, an Stirn und Scheitel mit einigen schwarzen Baaren untermischt. Anhang der Oberlippe trapezformig, Oberkiefer stumpf, schwarz, an der Spitze rot. Clypeus sehr dicht und fein kornig gerunzelt, aufserdem zerstreut und ziemlich stark punktiert, mit punktloser Mittellinie. Augenstreifen unten grau, oben braunschwarz. Skulptur von Stirn und Scheitel wegen der dichten Behaarung schwer zu erkennen. Schlafen, wie bei allen Arten der humilis-Gruppe, zu der die vorliegende Art gehort, ziemlich breit. Zweites Geifselglied der Fuhler kurzer al die 3 folgenden zusammengenommen. -Mesouotum aufserordentlich fein kornig gerunzelt, dazwischen flach eingestochen und zerstreut punktiert. …

Some Australian Bees, T. D. A. Cockerell

Co

No abstract provided.

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

Co

No abstract provided.

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

Co

No abstract provided.

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

Co

No abstract provided.

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

Co

No abstract provided.

Bees Of The Genus Megachile From Australia, T. D. A. Cockerell

Co

No abstract provided.

A New Bee Of The Genus Emphor, T. D. A. Cockerell

Co

No abstract provided.

Biggle Cow Book; Old Time And Modern Cow-Lore Rectified, Concentrated And Recorded For The Benefit Of Man, Jacob Biggle

Rare Books, Manuscripts,Government Documents, and Atlases

No abstract provided.

Part Ii. On Some New And Other Species Of Non-Parasitic Hymenoptera In The Collections Of The Zoological Branch Of The Forest Research Insitute, Dehra Dun, Peter Cameron

Bu

No abstract provided.

Beschreibung Einiger Chilenischer Halictus - Arten (Hym.), J. D. Alfken

A

Kopf, Thorax und Mittelsegment dunkel erzgrun oder blaugrun. Hinterleib rot, die niedergedruckten Hinterrandor der einzeln en Ringe gebraunt, der erste Ring ganz oder bis auf einen sehmalen roten Endrand schwarz. Kopf rund, kurz gelbgrau bebaart; Clypeus nicht vorgezogen, etwas breiter als lang, blau, mit violettem Schimmer, seine Basis erzgrun, ziemlich grob und sparsam, an der Basis feiner punktiert. Stirnschildchen rundlich gewolbt, zerstreut und fein punktiert. Wangen, Stirn und Schlafen dicht und fein, Scheitel weniger dioht punktiert.

Eucera Difficilis Duf. = E. Longicornis L. (Hym.), J. D. Alfken

A

In dieser Zeitschrift, p. 579, veroffentlicht H. Friese einen Artikel "Uber einige nomenklatorische Anderungen", in welchem er ausfubrt, infolge davon, dafs durch J. Perez die durftige Beschreibung von E. longicornis Linne erganzt und auf eine bestimmte Art (namlich E. longicomis Perez, Friese) gedeutet und festgelegt worden sei, babe nur noch die Auffassung , Bescbreibung und Type von Perez Beweiskraft und nicht die von Linne. Dabei beruft Friese sicb ohne Berechtigung auf die internationalen Regeln der zoologischen Nomenklatur, Berlin 1901, V. § 1, 2 und 3.

Two New Canadian Bees, T. D. A. Cockerell

Co

No abstract provided.

Circular No. 13 - Fruit For Exhibition, Leon D. Batchelor

UAES Circulars

The basis of a good fruit exhibit is necessarily good cultural conditions to produce good fruit. Then it depends on the exhibitor's ability to select his best fruit. Do not wait until the crop is picked to select show specimens. The successful exhibitor makes his prize selections in the orchard while the fruit i still on the tree. By viewing the fruit as it hangs naturally on the tree, and by carefully surveying the different trees in the orchard a good comparison of a large quantity of fruit can be made. The prize fruit is generally on the outermost branches, …

Biologie Südafrikanischer Apiden, H. Brauns

Bo

No abstract provided.

Chromosomenverhaltinisse Bei Der Spermatogenese Solitarer Apiden (Osmia Oornuta Latr.), Ludwig Armbruster

An

A soemwhat labored paper, packed with detail, and heaviy documented. The author attempts to combine biological data - his own data culled from literature - with cytological observations in an attempt to shed light on the cytology of sex determination in these bees.

Some Fossil Insects From Florissant, Colorado, T. D. A. Cockerell

Co

No abstract provided.

The Dentate Margin Of The Abdomen In Chrysis, T. Algernon Chapman

Ca

No abstract provided.

Die Pollensammelapparate Der Beinsammelnden Bienen, A. Braue

Bo

No abstract provided.

Forest Condition In Kentucky And Tennessee, Department Of Library Special Collections

Research Collections

No abstract provided.

Annual Report Of The Director Of The South Dakota Agricultural Experiment Station For Fiscal Year Ending June 30th, 1913, South Dakota State College Of Agriculture And Mechanic Arts

Agricultural Experiment Station and Research Farm Annual Reports

No abstract provided.

Ectoparasiten Und Abstammungslehre, Heinrich Fahrenholz

Harold W. Manter Laboratory of Parasitology: Library Materials

Bei Studien an parasitischen Milben im Jahre 1907 tauchte mir die Frage auf: Lassen sich aus dem Vorkommen gleicher oder verwandter Schmarotzer auf verschiedenen Wirten Rückschlüsse auf die Verwandtschaft letzterer machen?

Shorter Articles And Discussion Simplified Mendelian Formulae, R. A. Emerson

Department of Agronomy and Horticulture: Faculty Publications

I was somewhat surprised by 'Morgan's and Castle's suggestions for a simplification of Mendelian formulae. My surprise was not occasioned so much by the forms these suggestions took as by the fact that any pronounced changes were deemed necessary. I had not only employed the usual formula in my own work but had found no difficulty worth mentioning in understanding the formula used by most other workers in Mendelian fields. My experience with students in elementary courses in genetics had not prepared me for the idea that such formula were particularly difficult. Nevertheless I believe in simplifying the formulae if …

The Possible Origin Of Mutations In Somatic Cells, R. A. Emerson

Department of Agronomy and Horticulture: Faculty Publications

That mutations are accompanied by some change in the germ-plasm is, I take it, indisputable. Have we, however, any reason to suppose that the change takes place within the germ cells? I am not sure, as a matter of fact, that genetists in general regard the gametes as the place of origin of mutations. It is true, however, that experiments in the artificial production of mutations in plants have been limited largely to treatments of the ovaries from about the time of the reduction division to about the time of fertilization. This suggests a belief on the part of investigators …

Shorter Articles And Reports: The Simultaneous Modification Of Distinct Mendelian Factors, R. A. Emerson

Department of Agronomy and Horticulture: Faculty Publications

In another paper on the inheritance of a recurring somatic variation in variegated ears of maize, it was shown that the amount of red color developed in the pericarp of variegated seeds bears a definite relation to the development of color in the progeny of such seeds. The relation is such that the more color there is in the pericarp of the seeds planted the more likely are they to produce plants with wholly self-red ears and correspondingly the less likely to produce plants with variegated ears. Self-red ears thus produced behave just as if they were hybrids between self-red …

Two Lincoln (Nebraska) Typhoid Fever Epidemics Of 1911 And 1912., Herbert H. Waite

School of Biological Sciences: Faculty Publications

On August 29, 1912, I was requested by the Board of Health of the city of Lincoln to make an investigation to determine if possible the origin and cause of an outbreak of a disease reported as typhoid fever which was then prevailing. This outbreak was said to be most prevalent in one particular portion of the city and consequently attention was turned to that portion. Of the cases reported an investigation was made of over 60 individuals and after considering all the probable causes for the majority of those affected the conclusion was reached that all could be logically …

Some Of The Next Steps In Botanical Science, Charles E. Bessey

School of Biological Sciences: Faculty Publications

When one who has worked long in any

field of science speaks before an audience

such as this he is expected to say something

about the condition of his branch of science

when he began work with meager and

poorly adapted apparatus, to contrast it

with its greatly improved condition to-day,

and to dwell with pride upon the finely

equipped laboratories with costly apparatus

especially designed for particular

experiments, to be found by the twentieth

century scientific student. And 1 must

confess that the temptation to do so was

one difficult to resist, for we who have

grown old in …

Letter From Joseph Ginet 05, Jospeh Ginet

Plaisance Ranch Winery Documents

Joseph Ginet writes to his friends about Christmas dinner invitations.

Notes On Some Canadian Bees, J. C. Crawford

Co

The specimens here recorded are part of a collection made at Medicine Hat, Alberta, by Mr. J. R. Malloch, between September 1st and October 15th, 1911. Other species of bees, which have not been studied, were also collected.