However, there are still several types of calls that necessitate the use of telephone operators.

However, the litter remained, augmented by several dozen lunchroom suppers.

However, to the extent that the monetary authorities, in their effort to ease credit in the next several months, conduct their open market operations in longer-term Government bonds, they will certainly act to accentuate any tendency for long-term interest rates to ease as a result of market forces.

However, several telescope manufacturers have recently developed telescope systems that are calibrated with the use of built-in GPS, decreasing the time it takes to set up a telescope at the start of an observing session.

However, the Vandals tried for several decades to force their Arian beliefs on their North African Nicene subjects, exiling Nicene clergy, dissolving monasteries, and exercising heavy pressure on non-conforming Christians.

However, Wolfram points out that at the time " Clovis got no farther than the Seine ; only after several more years did the Franks succeed in occupying the rest of the Gallo-Roman buffer state north of the Loire.

However, he was not, according to several sources, Dinis ' favourite son ; his half-brother, the illegitimate Afonso Sanches, enjoyed full royal favour.

However, several other biographers of Alexander dispute the claim, including the highly regarded secondary source, Plutarch.

However, there may be several such allophones, or the linguist may prefer greater precision than this allows.

However, it does contain several galaxies.

However, music spanning several octaves could be played by repeated calls to a machine-language tone generator.

However, the total population of the arctic fox must be in the order of several hundred thousand animals.

However, several bands continued and arrangers provided renowned arrangements.

However, there were several others:

However, as of 2011 adoption of the new terms has been slow and usage has been limited in the marketplace and in the press, with notable exceptions such as Linux operating systems, several textbooks and scientific research papers.

However, the Germans swam across again and some others got over by a bridge a little way up-stream, after which they assailed the barbarians from several sides at once and cut down many of them.

However, several spellings of his surname exist — Thatch, Thach, Thache, Thack, Tack, Thatche and Theach.

However the loss of Culloden, the relative sizes of Orient and Leander and the participation in the action by two of the French frigates and several smaller vessels, as well as the theoretical strength of the French position, leads most historians to the conclusion that the French were marginally more powerful.

However, there will be several terms of the form x < sup > n − 2 </ sup > y < sup > 2 </ sup >, one for each way of choosing exactly two binomials to contribute a y.

However, when a national trade imbalance expands beyond prudence ( generally thought to be several percent of GDP, for several years ), adjustments tend to occur.

However, it is likely that fewer fought in the actual battle on the Italian side: Harold Marcus notes that " several thousand " soldiers were needed in support roles and to guard the lines of communication to the rear.

However, the three leading Italian brigades had become separated during their overnight march and at dawn were spread across several miles of very difficult terrain.

However, there still were several unsolved problems, most notably the description of superconductivity and the Kondo effect.

However, several important phase transitions, such as the Mott insulator-superfluid transition, are known that do not follow the Ginzburg-Landau paradigm.

However, in the state of Georgia, all indigenous, nonvenomous snakes are illegal to kill or capture, and are considered to be in the custody of the Georgia Department of Natural Resources.

However, because other nonvenomous mammals, such as baboons and other primates, have similar grooves some scientists have questioned whether these grooves truly indicate venom delivery.

However, other scientists have questioned this conclusion given that many living nonvenomous mammals ( e. g., many primates, coatis and fruit bats ) also have deep grooves down the length of their canines, suggesting that this feature does not always reflect an adaptation to venom delivery.

However, in contexts where " amoeboid " is defined more loosely, there are many amoeboid species that are in the Excavata clade.

However, there are reports of particular amphibian populations invading marine waters where their species is normally unable to survive.

However, some species with hairy seeds ( e. g. Eriospermum, family Asparagaceae s. l.

However, this name is used to refer to the brown vine snake, Ahaetulla pulverulenta, a slender, arboreal species that grows to five feet ( 152 cm ) at most and feeds only on small vertebrates.

However, the species of sea snail which is known in the seafood trade as the " Chilean abalone ", Concholepas concholepas, is from another family altogether.

However, the effects of acid rain can last for generations, as the effects of pH level change can stimulate the continued leaching of undesirable chemicals into otherwise pristine water sources, killing off vulnerable insect and fish species and blocking efforts to restore native life.

However, reactive oxygen species also have useful cellular functions, such as redox signaling.

However, bryozoan colonies are founded by an ancestrula, which is round rather than shaped like a normal zooid of that species.

However, the tree constructed by the living tree project, a collaboration between ARB-Silva and LPSN where a 16S ( and 23S if available ) tree of all validated species was constructed, the genus Bacillus contains a very large number of nested taxa and majorly in both 16S and 23S it is paraphyletic to Lactobacillales ( Lactobacillus, Streptococcus, Staphylococcus, Listeria, etc.

However, they are susceptible to Oodinium or velvet disease, microsporidia ( Pseudoloma neurophilia ), and Mycobacterium species.

However, this is only a general rule and many species differ.

However, many species are endangered.

However, there is debate ongoing between groups that believe the evidence indicates substantial extinction of these species at the K – T boundary, and those who believe the evidence supports multiple extinctions and expansions through the boundary.

However, molecules that are larger than the average pore size of the packing are excluded and thus suffer essentially no retention ; such species are the first to be eluted.

However, most authorities consider Sagittarius to be the civilized Chiron, while Centaurus represents a more uncouth member of the species.

However, one group of researchers have found that carob seeds in fact have typical variability compared to the seeds of other species.

However, many such models have been proven to be wrong and loss of habitat does not necessarily lead to large scale loss of species.

It is merely required they have capable and compatible receiver systems operational ; However, this is a variable humans cannot accurately estimate without actually making first contact with an intelligent extraterrestrial species.

However, they viewed life in terms of essentialism, where species were conceptualized as static unchanging things while varieties were seen as aberrations of an idealized type.

However, if these species do indeed constitute their own genus, then they may be given their own name, the Paranthropus.

However, there is an ongoing debate over whether H. floresiensis is indeed a separate species.

However, there may be confusion in trying to identify the species if one does not realise that it is a juvenile one is working with.

However, under some conditions, e. g. less fertile soils or less predictable drought regimes, the proportion of evergreen species increases and the forests are characterised as " sclerophyllous ".

However, felids may be found in almost any environment, with some species being native to mountainous terrain or deserts.

However, Przewalski's " Rosefinch " ( Urocynchramus pylzowi ) is now classified as a distinct family, monotypic as to genus and species, and with no particularly close relatives among the Passeroidea.